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Finding the Fourth Proportional to 442,670.88, 664,675.20 and 353,660.16

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Solution

The fourth proportional to 442,670.88, 664,675.20 and 353,660.16 is: 531,024.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,670.88 : 664,675.20 = 353,660.16 : x
  2. Step 2: Convert to fraction form
    442,670.88/664,675.20 = 353,660.16/x
  3. Step 3: Cross multiply
    442,670.88x = 664,675.20 × 353,660.16
  4. Step 4: Simplify right side
    442,670.88x = 235,069,137,580.03
  5. Step 5: Solve for x
    x = 235,069,137,580.03/442,670.88
  6. Step 6: Final answer
    x = 531,024.62

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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.