Home / 828,974.25-1,143,984.47-471,278.25

Finding the Fourth Proportional to 828,974.25, 1,143,984.47 and 471,278.25

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Solution

The fourth proportional to 828,974.25, 1,143,984.47 and 471,278.25 is: 650,363.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,974.25 : 1,143,984.47 = 471,278.25 : x
  2. Step 2: Convert to fraction form
    828,974.25/1,143,984.47 = 471,278.25/x
  3. Step 3: Cross multiply
    828,974.25x = 1,143,984.47 × 471,278.25
  4. Step 4: Simplify right side
    828,974.25x = 539,134,996,692.39
  5. Step 5: Solve for x
    x = 539,134,996,692.39/828,974.25
  6. Step 6: Final answer
    x = 650,363.99

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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.