Home / 2,077,822.80-3,116,734.20-815,000.40

Finding the Fourth Proportional to 2,077,822.80, 3,116,734.20 and 815,000.40

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Solution

The fourth proportional to 2,077,822.80, 3,116,734.20 and 815,000.40 is: 1,222,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077,822.80 : 3,116,734.20 = 815,000.40 : x
  2. Step 2: Convert to fraction form
    2,077,822.80/3,116,734.20 = 815,000.40/x
  3. Step 3: Cross multiply
    2,077,822.80x = 3,116,734.20 × 815,000.40
  4. Step 4: Simplify right side
    2,077,822.80x = 2,540,139,619,693.68
  5. Step 5: Solve for x
    x = 2,540,139,619,693.68/2,077,822.80
  6. Step 6: Final answer
    x = 1,222,500.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.