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Finding the Fourth Proportional to 682,820.80, 1,023,793.80 and 283,620.40

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Solution

The fourth proportional to 682,820.80, 1,023,793.80 and 283,620.40 is: 425,248.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,820.80 : 1,023,793.80 = 283,620.40 : x
  2. Step 2: Convert to fraction form
    682,820.80/1,023,793.80 = 283,620.40/x
  3. Step 3: Cross multiply
    682,820.80x = 1,023,793.80 × 283,620.40
  4. Step 4: Simplify right side
    682,820.80x = 290,368,807,073.52
  5. Step 5: Solve for x
    x = 290,368,807,073.52/682,820.80
  6. Step 6: Final answer
    x = 425,248.92

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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.