Home / 779,675.40-1,169,513.10-380,572.20

Finding the Fourth Proportional to 779,675.40, 1,169,513.10 and 380,572.20

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Solution

The fourth proportional to 779,675.40, 1,169,513.10 and 380,572.20 is: 570,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,675.40 : 1,169,513.10 = 380,572.20 : x
  2. Step 2: Convert to fraction form
    779,675.40/1,169,513.10 = 380,572.20/x
  3. Step 3: Cross multiply
    779,675.40x = 1,169,513.10 × 380,572.20
  4. Step 4: Simplify right side
    779,675.40x = 445,084,173,395.82
  5. Step 5: Solve for x
    x = 445,084,173,395.82/779,675.40
  6. Step 6: Final answer
    x = 570,858.30

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Half scale
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Double scale
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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.