Home / 485,867.13-670,497.66-271,001.67

Finding the Fourth Proportional to 485,867.13, 670,497.66 and 271,001.67

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Solution

The fourth proportional to 485,867.13, 670,497.66 and 271,001.67 is: 373,982.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,867.13 : 670,497.66 = 271,001.67 : x
  2. Step 2: Convert to fraction form
    485,867.13/670,497.66 = 271,001.67/x
  3. Step 3: Cross multiply
    485,867.13x = 670,497.66 × 271,001.67
  4. Step 4: Simplify right side
    485,867.13x = 181,705,985,591.09
  5. Step 5: Solve for x
    x = 181,705,985,591.09/485,867.13
  6. Step 6: Final answer
    x = 373,982.87

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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.