Home / 951,436.60-1,312,981.45-521,723.91

Finding the Fourth Proportional to 951,436.60, 1,312,981.45 and 521,723.91

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Solution

The fourth proportional to 951,436.60, 1,312,981.45 and 521,723.91 is: 719,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,436.60 : 1,312,981.45 = 521,723.91 : x
  2. Step 2: Convert to fraction form
    951,436.60/1,312,981.45 = 521,723.91/x
  3. Step 3: Cross multiply
    951,436.60x = 1,312,981.45 × 521,723.91
  4. Step 4: Simplify right side
    951,436.60x = 685,013,815,851.47
  5. Step 5: Solve for x
    x = 685,013,815,851.47/951,436.60
  6. Step 6: Final answer
    x = 719,978.42

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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.