Home / 993,485.20-1,489,207.20-487,267.60

Finding the Fourth Proportional to 993,485.20, 1,489,207.20 and 487,267.60

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Solution

The fourth proportional to 993,485.20, 1,489,207.20 and 487,267.60 is: 730,400.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,485.20 : 1,489,207.20 = 487,267.60 : x
  2. Step 2: Convert to fraction form
    993,485.20/1,489,207.20 = 487,267.60/x
  3. Step 3: Cross multiply
    993,485.20x = 1,489,207.20 × 487,267.60
  4. Step 4: Simplify right side
    993,485.20x = 725,642,418,246.72
  5. Step 5: Solve for x
    x = 725,642,418,246.72/993,485.20
  6. Step 6: Final answer
    x = 730,400.83

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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.