Home / 485,972.38-670,642.17-271,112.45

Finding the Fourth Proportional to 485,972.38, 670,642.17 and 271,112.45

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Solution

The fourth proportional to 485,972.38, 670,642.17 and 271,112.45 is: 374,135.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,972.38 : 670,642.17 = 271,112.45 : x
  2. Step 2: Convert to fraction form
    485,972.38/670,642.17 = 271,112.45/x
  3. Step 3: Cross multiply
    485,972.38x = 670,642.17 × 271,112.45
  4. Step 4: Simplify right side
    485,972.38x = 181,819,438,428.81
  5. Step 5: Solve for x
    x = 181,819,438,428.81/485,972.38
  6. Step 6: Final answer
    x = 374,135.34

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1.5x scale

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.