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Finding the Fourth Proportional to 625,466.82, 863,148.48 and 338,991.69

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Solution

The fourth proportional to 625,466.82, 863,148.48 and 338,991.69 is: 467,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,466.82 : 863,148.48 = 338,991.69 : x
  2. Step 2: Convert to fraction form
    625,466.82/863,148.48 = 338,991.69/x
  3. Step 3: Cross multiply
    625,466.82x = 863,148.48 × 338,991.69
  4. Step 4: Simplify right side
    625,466.82x = 292,600,161,956.13
  5. Step 5: Solve for x
    x = 292,600,161,956.13/625,466.82
  6. Step 6: Final answer
    x = 467,810.85

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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.