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Finding the Fourth Proportional to 496,865.80, 744,423.90 and 407,636.20

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Solution

The fourth proportional to 496,865.80, 744,423.90 and 407,636.20 is: 610,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,865.80 : 744,423.90 = 407,636.20 : x
  2. Step 2: Convert to fraction form
    496,865.80/744,423.90 = 407,636.20/x
  3. Step 3: Cross multiply
    496,865.80x = 744,423.90 × 407,636.20
  4. Step 4: Simplify right side
    496,865.80x = 303,454,129,785.18
  5. Step 5: Solve for x
    x = 303,454,129,785.18/496,865.80
  6. Step 6: Final answer
    x = 610,736.60

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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.