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Finding the Fourth Proportional to 625,214.40, 862,794.72 and 338,741.76

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Solution

The fourth proportional to 625,214.40, 862,794.72 and 338,741.76 is: 467,463.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,214.40 : 862,794.72 = 338,741.76 : x
  2. Step 2: Convert to fraction form
    625,214.40/862,794.72 = 338,741.76/x
  3. Step 3: Cross multiply
    625,214.40x = 862,794.72 × 338,741.76
  4. Step 4: Simplify right side
    625,214.40x = 292,264,601,971.51
  5. Step 5: Solve for x
    x = 292,264,601,971.51/625,214.40
  6. Step 6: Final answer
    x = 467,463.00

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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.