Home / 782,840.57-1,080,301.68-460,571.42

Finding the Fourth Proportional to 782,840.57, 1,080,301.68 and 460,571.42

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Solution

The fourth proportional to 782,840.57, 1,080,301.68 and 460,571.42 is: 635,577.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,840.57 : 1,080,301.68 = 460,571.42 : x
  2. Step 2: Convert to fraction form
    782,840.57/1,080,301.68 = 460,571.42/x
  3. Step 3: Cross multiply
    782,840.57x = 1,080,301.68 × 460,571.42
  4. Step 4: Simplify right side
    782,840.57x = 497,556,073,384.48
  5. Step 5: Solve for x
    x = 497,556,073,384.48/782,840.57
  6. Step 6: Final answer
    x = 635,577.79

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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.