Home / 485,988.27-670,650.87-271,122.81

Finding the Fourth Proportional to 485,988.27, 670,650.87 and 271,122.81

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Solution

The fourth proportional to 485,988.27, 670,650.87 and 271,122.81 is: 374,142.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,988.27 : 670,650.87 = 271,122.81 : x
  2. Step 2: Convert to fraction form
    485,988.27/670,650.87 = 271,122.81/x
  3. Step 3: Cross multiply
    485,988.27x = 670,650.87 × 271,122.81
  4. Step 4: Simplify right side
    485,988.27x = 181,828,748,403.35
  5. Step 5: Solve for x
    x = 181,828,748,403.35/485,988.27
  6. Step 6: Final answer
    x = 374,142.26

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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.