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Finding the Fourth Proportional to 625,446.63, 863,117.10 and 338,966.64

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Solution

The fourth proportional to 625,446.63, 863,117.10 and 338,966.64 is: 467,774.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,446.63 : 863,117.10 = 338,966.64 : x
  2. Step 2: Convert to fraction form
    625,446.63/863,117.10 = 338,966.64/x
  3. Step 3: Cross multiply
    625,446.63x = 863,117.10 × 338,966.64
  4. Step 4: Simplify right side
    625,446.63x = 292,567,903,313.54
  5. Step 5: Solve for x
    x = 292,567,903,313.54/625,446.63
  6. Step 6: Final answer
    x = 467,774.37

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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.