Home / 661,618.92-913,136.02-375,078.18

Finding the Fourth Proportional to 661,618.92, 913,136.02 and 375,078.18

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Solution

The fourth proportional to 661,618.92, 913,136.02 and 375,078.18 is: 517,665.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,618.92 : 913,136.02 = 375,078.18 : x
  2. Step 2: Convert to fraction form
    661,618.92/913,136.02 = 375,078.18/x
  3. Step 3: Cross multiply
    661,618.92x = 913,136.02 × 375,078.18
  4. Step 4: Simplify right side
    661,618.92x = 342,497,396,474.04
  5. Step 5: Solve for x
    x = 342,497,396,474.04/661,618.92
  6. Step 6: Final answer
    x = 517,665.66

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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.