Home / 765,099.52-1,147,227.96-315,718.24

Finding the Fourth Proportional to 765,099.52, 1,147,227.96 and 315,718.24

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Solution

The fourth proportional to 765,099.52, 1,147,227.96 and 315,718.24 is: 473,403.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,099.52 : 1,147,227.96 = 315,718.24 : x
  2. Step 2: Convert to fraction form
    765,099.52/1,147,227.96 = 315,718.24/x
  3. Step 3: Cross multiply
    765,099.52x = 1,147,227.96 × 315,718.24
  4. Step 4: Simplify right side
    765,099.52x = 362,200,792,409.99
  5. Step 5: Solve for x
    x = 362,200,792,409.99/765,099.52
  6. Step 6: Final answer
    x = 473,403.50

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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.