Home / 918,987.30-1,379,793.15-719,532.90

Finding the Fourth Proportional to 918,987.30, 1,379,793.15 and 719,532.90

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Solution

The fourth proportional to 918,987.30, 1,379,793.15 and 719,532.90 is: 1,080,326.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,987.30 : 1,379,793.15 = 719,532.90 : x
  2. Step 2: Convert to fraction form
    918,987.30/1,379,793.15 = 719,532.90/x
  3. Step 3: Cross multiply
    918,987.30x = 1,379,793.15 × 719,532.90
  4. Step 4: Simplify right side
    918,987.30x = 992,806,566,619.64
  5. Step 5: Solve for x
    x = 992,806,566,619.64/918,987.30
  6. Step 6: Final answer
    x = 1,080,326.75

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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.