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Finding the Fourth Proportional to 579,407.28, 869,449.92 and 242,419.68

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Solution

The fourth proportional to 579,407.28, 869,449.92 and 242,419.68 is: 363,771.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,407.28 : 869,449.92 = 242,419.68 : x
  2. Step 2: Convert to fraction form
    579,407.28/869,449.92 = 242,419.68/x
  3. Step 3: Cross multiply
    579,407.28x = 869,449.92 × 242,419.68
  4. Step 4: Simplify right side
    579,407.28x = 210,771,771,382.43
  5. Step 5: Solve for x
    x = 210,771,771,382.43/579,407.28
  6. Step 6: Final answer
    x = 363,771.36

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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.