Home / 820,132.40-1,230,198.60-503,562.80

Finding the Fourth Proportional to 820,132.40, 1,230,198.60 and 503,562.80

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Solution

The fourth proportional to 820,132.40, 1,230,198.60 and 503,562.80 is: 755,344.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,132.40 : 1,230,198.60 = 503,562.80 : x
  2. Step 2: Convert to fraction form
    820,132.40/1,230,198.60 = 503,562.80/x
  3. Step 3: Cross multiply
    820,132.40x = 1,230,198.60 × 503,562.80
  4. Step 4: Simplify right side
    820,132.40x = 619,482,251,572.08
  5. Step 5: Solve for x
    x = 619,482,251,572.08/820,132.40
  6. Step 6: Final answer
    x = 755,344.20

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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.