Home / 763,123.61-1,053,057.87-423,565.13

Finding the Fourth Proportional to 763,123.61, 1,053,057.87 and 423,565.13

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Solution

The fourth proportional to 763,123.61, 1,053,057.87 and 423,565.13 is: 584,490.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,123.61 : 1,053,057.87 = 423,565.13 : x
  2. Step 2: Convert to fraction form
    763,123.61/1,053,057.87 = 423,565.13/x
  3. Step 3: Cross multiply
    763,123.61x = 1,053,057.87 × 423,565.13
  4. Step 4: Simplify right side
    763,123.61x = 446,038,588,338.78
  5. Step 5: Solve for x
    x = 446,038,588,338.78/763,123.61
  6. Step 6: Final answer
    x = 584,490.62

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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.