Home / 728,780.20-1,003,648.26-626,059.24

Finding the Fourth Proportional to 728,780.20, 1,003,648.26 and 626,059.24

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Solution

The fourth proportional to 728,780.20, 1,003,648.26 and 626,059.24 is: 862,184.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,780.20 : 1,003,648.26 = 626,059.24 : x
  2. Step 2: Convert to fraction form
    728,780.20/1,003,648.26 = 626,059.24/x
  3. Step 3: Cross multiply
    728,780.20x = 1,003,648.26 × 626,059.24
  4. Step 4: Simplify right side
    728,780.20x = 628,343,266,882.92
  5. Step 5: Solve for x
    x = 628,343,266,882.92/728,780.20
  6. Step 6: Final answer
    x = 862,184.88

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1.5x scale

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.