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Finding the Fourth Proportional to 442,385.42, 662,905.82 and 324,135.14

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Solution

The fourth proportional to 442,385.42, 662,905.82 and 324,135.14 is: 485,710.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,385.42 : 662,905.82 = 324,135.14 : x
  2. Step 2: Convert to fraction form
    442,385.42/662,905.82 = 324,135.14/x
  3. Step 3: Cross multiply
    442,385.42x = 662,905.82 × 324,135.14
  4. Step 4: Simplify right side
    442,385.42x = 214,871,068,268.32
  5. Step 5: Solve for x
    x = 214,871,068,268.32/442,385.42
  6. Step 6: Final answer
    x = 485,710.11

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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.