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Finding the Fourth Proportional to 442,074.31, 663,116.02 and 353,888.39

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Solution

The fourth proportional to 442,074.31, 663,116.02 and 353,888.39 is: 530,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,074.31 : 663,116.02 = 353,888.39 : x
  2. Step 2: Convert to fraction form
    442,074.31/663,116.02 = 353,888.39/x
  3. Step 3: Cross multiply
    442,074.31x = 663,116.02 × 353,888.39
  4. Step 4: Simplify right side
    442,074.31x = 234,669,061,474.08
  5. Step 5: Solve for x
    x = 234,669,061,474.08/442,074.31
  6. Step 6: Final answer
    x = 530,836.24

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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.