Home / 4,654,712.20-6,982,068.30-1,288,919.20

Finding the Fourth Proportional to 4,654,712.20, 6,982,068.30 and 1,288,919.20

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Solution

The fourth proportional to 4,654,712.20, 6,982,068.30 and 1,288,919.20 is: 1,933,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,654,712.20 : 6,982,068.30 = 1,288,919.20 : x
  2. Step 2: Convert to fraction form
    4,654,712.20/6,982,068.30 = 1,288,919.20/x
  3. Step 3: Cross multiply
    4,654,712.20x = 6,982,068.30 × 1,288,919.20
  4. Step 4: Simplify right side
    4,654,712.20x = 8,999,321,887,581.36
  5. Step 5: Solve for x
    x = 8,999,321,887,581.36/4,654,712.20
  6. Step 6: Final answer
    x = 1,933,378.80

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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.