Home / 993,494.20-1,489,220.70-487,276.60

Finding the Fourth Proportional to 993,494.20, 1,489,220.70 and 487,276.60

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Solution

The fourth proportional to 993,494.20, 1,489,220.70 and 487,276.60 is: 730,414.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,494.20 : 1,489,220.70 = 487,276.60 : x
  2. Step 2: Convert to fraction form
    993,494.20/1,489,220.70 = 487,276.60/x
  3. Step 3: Cross multiply
    993,494.20x = 1,489,220.70 × 487,276.60
  4. Step 4: Simplify right side
    993,494.20x = 725,662,399,345.62
  5. Step 5: Solve for x
    x = 725,662,399,345.62/993,494.20
  6. Step 6: Final answer
    x = 730,414.33

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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.