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Finding the Fourth Proportional to 624,611.07, 861,963.06 and 338,130.93

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Solution

The fourth proportional to 624,611.07, 861,963.06 and 338,130.93 is: 466,620.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,611.07 : 861,963.06 = 338,130.93 : x
  2. Step 2: Convert to fraction form
    624,611.07/861,963.06 = 338,130.93/x
  3. Step 3: Cross multiply
    624,611.07x = 861,963.06 × 338,130.93
  4. Step 4: Simplify right side
    624,611.07x = 291,456,371,103.45
  5. Step 5: Solve for x
    x = 291,456,371,103.45/624,611.07
  6. Step 6: Final answer
    x = 466,620.57

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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.