Home / 993,503.20-1,489,234.20-487,285.60

Finding the Fourth Proportional to 993,503.20, 1,489,234.20 and 487,285.60

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Solution

The fourth proportional to 993,503.20, 1,489,234.20 and 487,285.60 is: 730,427.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,503.20 : 1,489,234.20 = 487,285.60 : x
  2. Step 2: Convert to fraction form
    993,503.20/1,489,234.20 = 487,285.60/x
  3. Step 3: Cross multiply
    993,503.20x = 1,489,234.20 × 487,285.60
  4. Step 4: Simplify right side
    993,503.20x = 725,682,380,687.52
  5. Step 5: Solve for x
    x = 725,682,380,687.52/993,503.20
  6. Step 6: Final answer
    x = 730,427.82

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Double scale
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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.