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Finding the Fourth Proportional to 625,316.40, 862,911.72 and 367,158.96

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Solution

The fourth proportional to 625,316.40, 862,911.72 and 367,158.96 is: 506,664.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,316.40 : 862,911.72 = 367,158.96 : x
  2. Step 2: Convert to fraction form
    625,316.40/862,911.72 = 367,158.96/x
  3. Step 3: Cross multiply
    625,316.40x = 862,911.72 × 367,158.96
  4. Step 4: Simplify right side
    625,316.40x = 316,825,769,687.01
  5. Step 5: Solve for x
    x = 316,825,769,687.01/625,316.40
  6. Step 6: Final answer
    x = 506,664.74

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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.