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Finding the Fourth Proportional to 457,672.79, 686,257.67 and 363,506.04

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Solution

The fourth proportional to 457,672.79, 686,257.67 and 363,506.04 is: 545,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,672.79 : 686,257.67 = 363,506.04 : x
  2. Step 2: Convert to fraction form
    457,672.79/686,257.67 = 363,506.04/x
  3. Step 3: Cross multiply
    457,672.79x = 686,257.67 × 363,506.04
  4. Step 4: Simplify right side
    457,672.79x = 249,458,808,950.09
  5. Step 5: Solve for x
    x = 249,458,808,950.09/457,672.79
  6. Step 6: Final answer
    x = 545,059.29

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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.