Home / 625,316.10-862,939.22-338,836.72

Finding the Fourth Proportional to 625,316.10, 862,939.22 and 338,836.72

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Solution

The fourth proportional to 625,316.10, 862,939.22 and 338,836.72 is: 467,596.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,316.10 : 862,939.22 = 338,836.72 : x
  2. Step 2: Convert to fraction form
    625,316.10/862,939.22 = 338,836.72/x
  3. Step 3: Cross multiply
    625,316.10x = 862,939.22 × 338,836.72
  4. Step 4: Simplify right side
    625,316.10x = 292,395,494,864.16
  5. Step 5: Solve for x
    x = 292,395,494,864.16/625,316.10
  6. Step 6: Final answer
    x = 467,596.30

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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.