Home / 516,487.07-712,751.45-287,037.15

Finding the Fourth Proportional to 516,487.07, 712,751.45 and 287,037.15

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Solution

The fourth proportional to 516,487.07, 712,751.45 and 287,037.15 is: 396,110.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,487.07 : 712,751.45 = 287,037.15 : x
  2. Step 2: Convert to fraction form
    516,487.07/712,751.45 = 287,037.15/x
  3. Step 3: Cross multiply
    516,487.07x = 712,751.45 × 287,037.15
  4. Step 4: Simplify right side
    516,487.07x = 204,586,143,431.18
  5. Step 5: Solve for x
    x = 204,586,143,431.18/516,487.07
  6. Step 6: Final answer
    x = 396,110.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.