Home / 718,837.52-991,953.24-396,548.24

Finding the Fourth Proportional to 718,837.52, 991,953.24 and 396,548.24

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Solution

The fourth proportional to 718,837.52, 991,953.24 and 396,548.24 is: 547,213.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,837.52 : 991,953.24 = 396,548.24 : x
  2. Step 2: Convert to fraction form
    718,837.52/991,953.24 = 396,548.24/x
  3. Step 3: Cross multiply
    718,837.52x = 991,953.24 × 396,548.24
  4. Step 4: Simplify right side
    718,837.52x = 393,357,311,484.30
  5. Step 5: Solve for x
    x = 393,357,311,484.30/718,837.52
  6. Step 6: Final answer
    x = 547,213.11

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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.