Home / 765,603.92-1,148,107.79-316,397.36

Finding the Fourth Proportional to 765,603.92, 1,148,107.79 and 316,397.36

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Solution

The fourth proportional to 765,603.92, 1,148,107.79 and 316,397.36 is: 474,472.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,603.92 : 1,148,107.79 = 316,397.36 : x
  2. Step 2: Convert to fraction form
    765,603.92/1,148,107.79 = 316,397.36/x
  3. Step 3: Cross multiply
    765,603.92x = 1,148,107.79 × 316,397.36
  4. Step 4: Simplify right side
    765,603.92x = 363,258,266,428.91
  5. Step 5: Solve for x
    x = 363,258,266,428.91/765,603.92
  6. Step 6: Final answer
    x = 474,472.84

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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.