Home / 457,627.28-686,433.56-142,084.49

Finding the Fourth Proportional to 457,627.28, 686,433.56 and 142,084.49

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Solution

The fourth proportional to 457,627.28, 686,433.56 and 142,084.49 is: 213,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,627.28 : 686,433.56 = 142,084.49 : x
  2. Step 2: Convert to fraction form
    457,627.28/686,433.56 = 142,084.49/x
  3. Step 3: Cross multiply
    457,627.28x = 686,433.56 × 142,084.49
  4. Step 4: Simplify right side
    457,627.28x = 97,531,558,148.89
  5. Step 5: Solve for x
    x = 97,531,558,148.89/457,627.28
  6. Step 6: Final answer
    x = 213,124.44

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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.