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Finding the Fourth Proportional to 598,545.60, 897,040.80 and 432,139.20

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Solution

The fourth proportional to 598,545.60, 897,040.80 and 432,139.20 is: 647,647.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,545.60 : 897,040.80 = 432,139.20 : x
  2. Step 2: Convert to fraction form
    598,545.60/897,040.80 = 432,139.20/x
  3. Step 3: Cross multiply
    598,545.60x = 897,040.80 × 432,139.20
  4. Step 4: Simplify right side
    598,545.60x = 387,646,493,679.36
  5. Step 5: Solve for x
    x = 387,646,493,679.36/598,545.60
  6. Step 6: Final answer
    x = 647,647.39

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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.