Home / 767,499.20-1,151,248.80-607,140.80

Finding the Fourth Proportional to 767,499.20, 1,151,248.80 and 607,140.80

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Solution

The fourth proportional to 767,499.20, 1,151,248.80 and 607,140.80 is: 910,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,499.20 : 1,151,248.80 = 607,140.80 : x
  2. Step 2: Convert to fraction form
    767,499.20/1,151,248.80 = 607,140.80/x
  3. Step 3: Cross multiply
    767,499.20x = 1,151,248.80 × 607,140.80
  4. Step 4: Simplify right side
    767,499.20x = 698,970,117,431.04
  5. Step 5: Solve for x
    x = 698,970,117,431.04/767,499.20
  6. Step 6: Final answer
    x = 910,711.20

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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.