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Finding the Fourth Proportional to 625,475.43, 863,157.47 and 338,995.44

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Solution

The fourth proportional to 625,475.43, 863,157.47 and 338,995.44 is: 467,814.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,475.43 : 863,157.47 = 338,995.44 : x
  2. Step 2: Convert to fraction form
    625,475.43/863,157.47 = 338,995.44/x
  3. Step 3: Cross multiply
    625,475.43x = 863,157.47 × 338,995.44
  4. Step 4: Simplify right side
    625,475.43x = 292,606,444,636.96
  5. Step 5: Solve for x
    x = 292,606,444,636.96/625,475.43
  6. Step 6: Final answer
    x = 467,814.45

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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.