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Finding the Fourth Proportional to 551,382.20, 826,635.90 and 302,064.20

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Solution

The fourth proportional to 551,382.20, 826,635.90 and 302,064.20 is: 452,856.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,382.20 : 826,635.90 = 302,064.20 : x
  2. Step 2: Convert to fraction form
    551,382.20/826,635.90 = 302,064.20/x
  3. Step 3: Cross multiply
    551,382.20x = 826,635.90 × 302,064.20
  4. Step 4: Simplify right side
    551,382.20x = 249,697,111,824.78
  5. Step 5: Solve for x
    x = 249,697,111,824.78/551,382.20
  6. Step 6: Final answer
    x = 452,856.68

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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.