Home / 658,113.80-988,337.10-508,717.40

Finding the Fourth Proportional to 658,113.80, 988,337.10 and 508,717.40

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Solution

The fourth proportional to 658,113.80, 988,337.10 and 508,717.40 is: 763,977.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,113.80 : 988,337.10 = 508,717.40 : x
  2. Step 2: Convert to fraction form
    658,113.80/988,337.10 = 508,717.40/x
  3. Step 3: Cross multiply
    658,113.80x = 988,337.10 × 508,717.40
  4. Step 4: Simplify right side
    658,113.80x = 502,784,279,835.54
  5. Step 5: Solve for x
    x = 502,784,279,835.54/658,113.80
  6. Step 6: Final answer
    x = 763,977.72

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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.