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Finding the Fourth Proportional to 1,974,446.64, 2,961,669.96 and 478,538.64

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Solution

The fourth proportional to 1,974,446.64, 2,961,669.96 and 478,538.64 is: 717,807.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,446.64 : 2,961,669.96 = 478,538.64 : x
  2. Step 2: Convert to fraction form
    1,974,446.64/2,961,669.96 = 478,538.64/x
  3. Step 3: Cross multiply
    1,974,446.64x = 2,961,669.96 × 478,538.64
  4. Step 4: Simplify right side
    1,974,446.64x = 1,417,273,514,787.25
  5. Step 5: Solve for x
    x = 1,417,273,514,787.25/1,974,446.64
  6. Step 6: Final answer
    x = 717,807.96

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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.