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Finding the Fourth Proportional to 491,538.54, 737,307.51 and 281,028.87

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Solution

The fourth proportional to 491,538.54, 737,307.51 and 281,028.87 is: 421,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,538.54 : 737,307.51 = 281,028.87 : x
  2. Step 2: Convert to fraction form
    491,538.54/737,307.51 = 281,028.87/x
  3. Step 3: Cross multiply
    491,538.54x = 737,307.51 × 281,028.87
  4. Step 4: Simplify right side
    491,538.54x = 207,204,696,377.81
  5. Step 5: Solve for x
    x = 207,204,696,377.81/491,538.54
  6. Step 6: Final answer
    x = 421,543.13

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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.