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Finding the Fourth Proportional to 491,172.30, 736,758.45 and 432,123.30

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Solution

The fourth proportional to 491,172.30, 736,758.45 and 432,123.30 is: 648,184.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,172.30 : 736,758.45 = 432,123.30 : x
  2. Step 2: Convert to fraction form
    491,172.30/736,758.45 = 432,123.30/x
  3. Step 3: Cross multiply
    491,172.30x = 736,758.45 × 432,123.30
  4. Step 4: Simplify right side
    491,172.30x = 318,370,492,716.89
  5. Step 5: Solve for x
    x = 318,370,492,716.89/491,172.30
  6. Step 6: Final answer
    x = 648,184.95

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Similar ratio
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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.