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Finding the Fourth Proportional to 491,806.80, 737,710.20 and 488,307.60

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Solution

The fourth proportional to 491,806.80, 737,710.20 and 488,307.60 is: 732,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,806.80 : 737,710.20 = 488,307.60 : x
  2. Step 2: Convert to fraction form
    491,806.80/737,710.20 = 488,307.60/x
  3. Step 3: Cross multiply
    491,806.80x = 737,710.20 × 488,307.60
  4. Step 4: Simplify right side
    491,806.80x = 360,229,497,257.52
  5. Step 5: Solve for x
    x = 360,229,497,257.52/491,806.80
  6. Step 6: Final answer
    x = 732,461.40

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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.