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Finding the Fourth Proportional to 480,648.75, 721,014.02 and 125,662.20

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Solution

The fourth proportional to 480,648.75, 721,014.02 and 125,662.20 is: 188,503.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,648.75 : 721,014.02 = 125,662.20 : x
  2. Step 2: Convert to fraction form
    480,648.75/721,014.02 = 125,662.20/x
  3. Step 3: Cross multiply
    480,648.75x = 721,014.02 × 125,662.20
  4. Step 4: Simplify right side
    480,648.75x = 90,604,207,984.04
  5. Step 5: Solve for x
    x = 90,604,207,984.04/480,648.75
  6. Step 6: Final answer
    x = 188,503.99

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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.