Home / 485,636.20-670,155.30-270,799.72

Finding the Fourth Proportional to 485,636.20, 670,155.30 and 270,799.72

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Solution

The fourth proportional to 485,636.20, 670,155.30 and 270,799.72 is: 373,690.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,636.20 : 670,155.30 = 270,799.72 : x
  2. Step 2: Convert to fraction form
    485,636.20/670,155.30 = 270,799.72/x
  3. Step 3: Cross multiply
    485,636.20x = 670,155.30 × 270,799.72
  4. Step 4: Simplify right side
    485,636.20x = 181,477,867,596.52
  5. Step 5: Solve for x
    x = 181,477,867,596.52/485,636.20
  6. Step 6: Final answer
    x = 373,690.98

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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.