Home / 870,872.80-1,306,309.20-496,933.60

Finding the Fourth Proportional to 870,872.80, 1,306,309.20 and 496,933.60

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Solution

The fourth proportional to 870,872.80, 1,306,309.20 and 496,933.60 is: 745,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,872.80 : 1,306,309.20 = 496,933.60 : x
  2. Step 2: Convert to fraction form
    870,872.80/1,306,309.20 = 496,933.60/x
  3. Step 3: Cross multiply
    870,872.80x = 1,306,309.20 × 496,933.60
  4. Step 4: Simplify right side
    870,872.80x = 649,148,933,469.12
  5. Step 5: Solve for x
    x = 649,148,933,469.12/870,872.80
  6. Step 6: Final answer
    x = 745,400.40

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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.