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Finding the Fourth Proportional to 456,569.60, 628,759.68 and 329,043.20

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Solution

The fourth proportional to 456,569.60, 628,759.68 and 329,043.20 is: 453,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,569.60 : 628,759.68 = 329,043.20 : x
  2. Step 2: Convert to fraction form
    456,569.60/628,759.68 = 329,043.20/x
  3. Step 3: Cross multiply
    456,569.60x = 628,759.68 × 329,043.20
  4. Step 4: Simplify right side
    456,569.60x = 206,889,097,138.18
  5. Step 5: Solve for x
    x = 206,889,097,138.18/456,569.60
  6. Step 6: Final answer
    x = 453,138.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.