Home / 916,723.20-1,377,158.40-636,787.20

Finding the Fourth Proportional to 916,723.20, 1,377,158.40 and 636,787.20

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Solution

The fourth proportional to 916,723.20, 1,377,158.40 and 636,787.20 is: 956,621.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,723.20 : 1,377,158.40 = 636,787.20 : x
  2. Step 2: Convert to fraction form
    916,723.20/1,377,158.40 = 636,787.20/x
  3. Step 3: Cross multiply
    916,723.20x = 1,377,158.40 × 636,787.20
  4. Step 4: Simplify right side
    916,723.20x = 876,956,841,492.48
  5. Step 5: Solve for x
    x = 876,956,841,492.48/916,723.20
  6. Step 6: Final answer
    x = 956,621.19

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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.