Home / 908,139.60-1,361,237.40-308,545.20

Finding the Fourth Proportional to 908,139.60, 1,361,237.40 and 308,545.20

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Solution

The fourth proportional to 908,139.60, 1,361,237.40 and 308,545.20 is: 462,487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,139.60 : 1,361,237.40 = 308,545.20 : x
  2. Step 2: Convert to fraction form
    908,139.60/1,361,237.40 = 308,545.20/x
  3. Step 3: Cross multiply
    908,139.60x = 1,361,237.40 × 308,545.20
  4. Step 4: Simplify right side
    908,139.60x = 420,003,265,830.48
  5. Step 5: Solve for x
    x = 420,003,265,830.48/908,139.60
  6. Step 6: Final answer
    x = 462,487.56

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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.