Home / 804,839.20-1,206,821.40-331,572.40

Finding the Fourth Proportional to 804,839.20, 1,206,821.40 and 331,572.40

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Solution

The fourth proportional to 804,839.20, 1,206,821.40 and 331,572.40 is: 497,178.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,839.20 : 1,206,821.40 = 331,572.40 : x
  2. Step 2: Convert to fraction form
    804,839.20/1,206,821.40 = 331,572.40/x
  3. Step 3: Cross multiply
    804,839.20x = 1,206,821.40 × 331,572.40
  4. Step 4: Simplify right side
    804,839.20x = 400,148,667,969.36
  5. Step 5: Solve for x
    x = 400,148,667,969.36/804,839.20
  6. Step 6: Final answer
    x = 497,178.40

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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.