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Finding the Fourth Proportional to 423,264.71, 634,956.63 and 123,767.82

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Solution

The fourth proportional to 423,264.71, 634,956.63 and 123,767.82 is: 185,669.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,264.71 : 634,956.63 = 123,767.82 : x
  2. Step 2: Convert to fraction form
    423,264.71/634,956.63 = 123,767.82/x
  3. Step 3: Cross multiply
    423,264.71x = 634,956.63 × 123,767.82
  4. Step 4: Simplify right side
    423,264.71x = 78,587,197,889.65
  5. Step 5: Solve for x
    x = 78,587,197,889.65/423,264.71
  6. Step 6: Final answer
    x = 185,669.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.