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Finding the Fourth Proportional to 675,963.25, 932,931.75 and 385,573.39

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Solution

The fourth proportional to 675,963.25, 932,931.75 and 385,573.39 is: 532,149.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,963.25 : 932,931.75 = 385,573.39 : x
  2. Step 2: Convert to fraction form
    675,963.25/932,931.75 = 385,573.39/x
  3. Step 3: Cross multiply
    675,963.25x = 932,931.75 × 385,573.39
  4. Step 4: Simplify right side
    675,963.25x = 359,713,657,486.13
  5. Step 5: Solve for x
    x = 359,713,657,486.13/675,963.25
  6. Step 6: Final answer
    x = 532,149.72

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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.