Home / 717,371.55-990,080.37-545,005.88

Finding the Fourth Proportional to 717,371.55, 990,080.37 and 545,005.88

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Solution

The fourth proportional to 717,371.55, 990,080.37 and 545,005.88 is: 752,189.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,371.55 : 990,080.37 = 545,005.88 : x
  2. Step 2: Convert to fraction form
    717,371.55/990,080.37 = 545,005.88/x
  3. Step 3: Cross multiply
    717,371.55x = 990,080.37 × 545,005.88
  4. Step 4: Simplify right side
    717,371.55x = 539,599,620,041.20
  5. Step 5: Solve for x
    x = 539,599,620,041.20/717,371.55
  6. Step 6: Final answer
    x = 752,189.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.