Home / 480,649.75-721,015.52-125,663.20

Finding the Fourth Proportional to 480,649.75, 721,015.52 and 125,663.20

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Solution

The fourth proportional to 480,649.75, 721,015.52 and 125,663.20 is: 188,505.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,649.75 : 721,015.52 = 125,663.20 : x
  2. Step 2: Convert to fraction form
    480,649.75/721,015.52 = 125,663.20/x
  3. Step 3: Cross multiply
    480,649.75x = 721,015.52 × 125,663.20
  4. Step 4: Simplify right side
    480,649.75x = 90,605,117,492.86
  5. Step 5: Solve for x
    x = 90,605,117,492.86/480,649.75
  6. Step 6: Final answer
    x = 188,505.49

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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.