Home / 485,540.13-670,045.50-270,675.57

Finding the Fourth Proportional to 485,540.13, 670,045.50 and 270,675.57

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Solution

The fourth proportional to 485,540.13, 670,045.50 and 270,675.57 is: 373,532.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,540.13 : 670,045.50 = 270,675.57 : x
  2. Step 2: Convert to fraction form
    485,540.13/670,045.50 = 270,675.57/x
  3. Step 3: Cross multiply
    485,540.13x = 670,045.50 × 270,675.57
  4. Step 4: Simplify right side
    485,540.13x = 181,364,947,638.44
  5. Step 5: Solve for x
    x = 181,364,947,638.44/485,540.13
  6. Step 6: Final answer
    x = 373,532.35

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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.