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Finding the Fourth Proportional to 661,902.41, 992,726.63 and 257,094.17

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Solution

The fourth proportional to 661,902.41, 992,726.63 and 257,094.17 is: 385,591.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,902.41 : 992,726.63 = 257,094.17 : x
  2. Step 2: Convert to fraction form
    661,902.41/992,726.63 = 257,094.17/x
  3. Step 3: Cross multiply
    661,902.41x = 992,726.63 × 257,094.17
  4. Step 4: Simplify right side
    661,902.41x = 255,224,222,727.64
  5. Step 5: Solve for x
    x = 255,224,222,727.64/661,902.41
  6. Step 6: Final answer
    x = 385,591.93

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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.