Home / 804,073.20-1,205,672.40-330,806.40

Finding the Fourth Proportional to 804,073.20, 1,205,672.40 and 330,806.40

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Solution

The fourth proportional to 804,073.20, 1,205,672.40 and 330,806.40 is: 496,029.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,073.20 : 1,205,672.40 = 330,806.40 : x
  2. Step 2: Convert to fraction form
    804,073.20/1,205,672.40 = 330,806.40/x
  3. Step 3: Cross multiply
    804,073.20x = 1,205,672.40 × 330,806.40
  4. Step 4: Simplify right side
    804,073.20x = 398,844,146,223.36
  5. Step 5: Solve for x
    x = 398,844,146,223.36/804,073.20
  6. Step 6: Final answer
    x = 496,029.65

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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.