Home / 840,737.76-1,261,071.32-391,304.04

Finding the Fourth Proportional to 840,737.76, 1,261,071.32 and 391,304.04

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Solution

The fourth proportional to 840,737.76, 1,261,071.32 and 391,304.04 is: 586,939.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,737.76 : 1,261,071.32 = 391,304.04 : x
  2. Step 2: Convert to fraction form
    840,737.76/1,261,071.32 = 391,304.04/x
  3. Step 3: Cross multiply
    840,737.76x = 1,261,071.32 × 391,304.04
  4. Step 4: Simplify right side
    840,737.76x = 493,462,302,244.13
  5. Step 5: Solve for x
    x = 493,462,302,244.13/840,737.76
  6. Step 6: Final answer
    x = 586,939.62

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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.