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Finding the Fourth Proportional to 463,263.93, 639,315.05 and 259,309.78

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Solution

The fourth proportional to 463,263.93, 639,315.05 and 259,309.78 is: 357,853.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,263.93 : 639,315.05 = 259,309.78 : x
  2. Step 2: Convert to fraction form
    463,263.93/639,315.05 = 259,309.78/x
  3. Step 3: Cross multiply
    463,263.93x = 639,315.05 × 259,309.78
  4. Step 4: Simplify right side
    463,263.93x = 165,780,644,966.19
  5. Step 5: Solve for x
    x = 165,780,644,966.19/463,263.93
  6. Step 6: Final answer
    x = 357,853.56

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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.