Home / 779,802.51-1,169,703.76-330,513.33

Finding the Fourth Proportional to 779,802.51, 1,169,703.76 and 330,513.33

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Solution

The fourth proportional to 779,802.51, 1,169,703.76 and 330,513.33 is: 495,769.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,802.51 : 1,169,703.76 = 330,513.33 : x
  2. Step 2: Convert to fraction form
    779,802.51/1,169,703.76 = 330,513.33/x
  3. Step 3: Cross multiply
    779,802.51x = 1,169,703.76 × 330,513.33
  4. Step 4: Simplify right side
    779,802.51x = 386,602,684,831.12
  5. Step 5: Solve for x
    x = 386,602,684,831.12/779,802.51
  6. Step 6: Final answer
    x = 495,769.99

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Double scale
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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.