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Finding the Fourth Proportional to 600,385.20, 898,390.80 and 442,921.20

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Solution

The fourth proportional to 600,385.20, 898,390.80 and 442,921.20 is: 662,768.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,385.20 : 898,390.80 = 442,921.20 : x
  2. Step 2: Convert to fraction form
    600,385.20/898,390.80 = 442,921.20/x
  3. Step 3: Cross multiply
    600,385.20x = 898,390.80 × 442,921.20
  4. Step 4: Simplify right side
    600,385.20x = 397,916,331,204.96
  5. Step 5: Solve for x
    x = 397,916,331,204.96/600,385.20
  6. Step 6: Final answer
    x = 662,768.39

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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.