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Finding the Fourth Proportional to 625,070.81, 862,601.86 and 338,590.89

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Solution

The fourth proportional to 625,070.81, 862,601.86 and 338,590.89 is: 467,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,070.81 : 862,601.86 = 338,590.89 : x
  2. Step 2: Convert to fraction form
    625,070.81/862,601.86 = 338,590.89/x
  3. Step 3: Cross multiply
    625,070.81x = 862,601.86 × 338,590.89
  4. Step 4: Simplify right side
    625,070.81x = 292,069,131,493.06
  5. Step 5: Solve for x
    x = 292,069,131,493.06/625,070.81
  6. Step 6: Final answer
    x = 467,257.67

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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.