Home / 747,740.30-1,121,610.45-482,019.80

Finding the Fourth Proportional to 747,740.30, 1,121,610.45 and 482,019.80

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Solution

The fourth proportional to 747,740.30, 1,121,610.45 and 482,019.80 is: 723,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,740.30 : 1,121,610.45 = 482,019.80 : x
  2. Step 2: Convert to fraction form
    747,740.30/1,121,610.45 = 482,019.80/x
  3. Step 3: Cross multiply
    747,740.30x = 1,121,610.45 × 482,019.80
  4. Step 4: Simplify right side
    747,740.30x = 540,638,444,786.91
  5. Step 5: Solve for x
    x = 540,638,444,786.91/747,740.30
  6. Step 6: Final answer
    x = 723,029.70

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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.