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Finding the Fourth Proportional to 442,860.32, 664,816.56 and 349,433.12

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Solution

The fourth proportional to 442,860.32, 664,816.56 and 349,433.12 is: 524,564.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,860.32 : 664,816.56 = 349,433.12 : x
  2. Step 2: Convert to fraction form
    442,860.32/664,816.56 = 349,433.12/x
  3. Step 3: Cross multiply
    442,860.32x = 664,816.56 × 349,433.12
  4. Step 4: Simplify right side
    442,860.32x = 232,308,924,788.47
  5. Step 5: Solve for x
    x = 232,308,924,788.47/442,860.32
  6. Step 6: Final answer
    x = 524,564.78

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1.5x scale

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.