Home / 779,801.51-1,169,702.26-330,512.33

Finding the Fourth Proportional to 779,801.51, 1,169,702.26 and 330,512.33

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Solution

The fourth proportional to 779,801.51, 1,169,702.26 and 330,512.33 is: 495,768.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,801.51 : 1,169,702.26 = 330,512.33 : x
  2. Step 2: Convert to fraction form
    779,801.51/1,169,702.26 = 330,512.33/x
  3. Step 3: Cross multiply
    779,801.51x = 1,169,702.26 × 330,512.33
  4. Step 4: Simplify right side
    779,801.51x = 386,601,012,684.07
  5. Step 5: Solve for x
    x = 386,601,012,684.07/779,801.51
  6. Step 6: Final answer
    x = 495,768.49

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Half scale
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Double scale
Find fourth proportional to 779,802.51, 1,169,703.76 and 330,513.33
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.