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Finding the Fourth Proportional to 366,819.20, 514,480 and 366,819.20

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Solution

The fourth proportional to 366,819.20, 514,480 and 366,819.20 is: 514,480

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,819.20 : 514,480 = 366,819.20 : x
  2. Step 2: Convert to fraction form
    366,819.20/514,480 = 366,819.20/x
  3. Step 3: Cross multiply
    366,819.20x = 514,480 × 366,819.20
  4. Step 4: Simplify right side
    366,819.20x = 188,721,142,016
  5. Step 5: Solve for x
    x = 188,721,142,016/366,819.20
  6. Step 6: Final answer
    x = 514,480

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.