Home / 1,036,687.68-1,555,031.52-438,324.48

Finding the Fourth Proportional to 1,036,687.68, 1,555,031.52 and 438,324.48

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Solution

The fourth proportional to 1,036,687.68, 1,555,031.52 and 438,324.48 is: 657,486.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,687.68 : 1,555,031.52 = 438,324.48 : x
  2. Step 2: Convert to fraction form
    1,036,687.68/1,555,031.52 = 438,324.48/x
  3. Step 3: Cross multiply
    1,036,687.68x = 1,555,031.52 × 438,324.48
  4. Step 4: Simplify right side
    1,036,687.68x = 681,608,382,387.61
  5. Step 5: Solve for x
    x = 681,608,382,387.61/1,036,687.68
  6. Step 6: Final answer
    x = 657,486.72

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Double scale
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Similar ratio
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1.5x scale

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.