Home / 993,505.20-1,489,237.20-487,287.60

Finding the Fourth Proportional to 993,505.20, 1,489,237.20 and 487,287.60

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Solution

The fourth proportional to 993,505.20, 1,489,237.20 and 487,287.60 is: 730,430.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,505.20 : 1,489,237.20 = 487,287.60 : x
  2. Step 2: Convert to fraction form
    993,505.20/1,489,237.20 = 487,287.60/x
  3. Step 3: Cross multiply
    993,505.20x = 1,489,237.20 × 487,287.60
  4. Step 4: Simplify right side
    993,505.20x = 725,686,821,018.72
  5. Step 5: Solve for x
    x = 725,686,821,018.72/993,505.20
  6. Step 6: Final answer
    x = 730,430.82

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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.