Home / 951,019.76-1,312,440.90-521,299.78

Finding the Fourth Proportional to 951,019.76, 1,312,440.90 and 521,299.78

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Solution

The fourth proportional to 951,019.76, 1,312,440.90 and 521,299.78 is: 719,412.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    951,019.76 : 1,312,440.90 = 521,299.78 : x
  2. Step 2: Convert to fraction form
    951,019.76/1,312,440.90 = 521,299.78/x
  3. Step 3: Cross multiply
    951,019.76x = 1,312,440.90 × 521,299.78
  4. Step 4: Simplify right side
    951,019.76x = 684,175,145,870.80
  5. Step 5: Solve for x
    x = 684,175,145,870.80/951,019.76
  6. Step 6: Final answer
    x = 719,412.12

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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.