Home / 711,809.40-1,070,046.90-502,894.20

Finding the Fourth Proportional to 711,809.40, 1,070,046.90 and 502,894.20

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Solution

The fourth proportional to 711,809.40, 1,070,046.90 and 502,894.20 is: 755,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,809.40 : 1,070,046.90 = 502,894.20 : x
  2. Step 2: Convert to fraction form
    711,809.40/1,070,046.90 = 502,894.20/x
  3. Step 3: Cross multiply
    711,809.40x = 1,070,046.90 × 502,894.20
  4. Step 4: Simplify right side
    711,809.40x = 538,120,379,737.98
  5. Step 5: Solve for x
    x = 538,120,379,737.98/711,809.40
  6. Step 6: Final answer
    x = 755,989.43

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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.