Home / 661,772.30-913,212.43-375,319.04

Finding the Fourth Proportional to 661,772.30, 913,212.43 and 375,319.04

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Solution

The fourth proportional to 661,772.30, 913,212.43 and 375,319.04 is: 517,921.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,772.30 : 913,212.43 = 375,319.04 : x
  2. Step 2: Convert to fraction form
    661,772.30/913,212.43 = 375,319.04/x
  3. Step 3: Cross multiply
    661,772.30x = 913,212.43 × 375,319.04
  4. Step 4: Simplify right side
    661,772.30x = 342,746,007,039.31
  5. Step 5: Solve for x
    x = 342,746,007,039.31/661,772.30
  6. Step 6: Final answer
    x = 517,921.36

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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.