Home / 728,778.20-1,003,645.50-626,057.24

Finding the Fourth Proportional to 728,778.20, 1,003,645.50 and 626,057.24

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Solution

The fourth proportional to 728,778.20, 1,003,645.50 and 626,057.24 is: 862,182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,778.20 : 1,003,645.50 = 626,057.24 : x
  2. Step 2: Convert to fraction form
    728,778.20/1,003,645.50 = 626,057.24/x
  3. Step 3: Cross multiply
    728,778.20x = 1,003,645.50 × 626,057.24
  4. Step 4: Simplify right side
    728,778.20x = 628,339,531,668.42
  5. Step 5: Solve for x
    x = 628,339,531,668.42/728,778.20
  6. Step 6: Final answer
    x = 862,182.12

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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.