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Finding the Fourth Proportional to 983,345.60, 1,471,519.20 and 682,414.40

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Solution

The fourth proportional to 983,345.60, 1,471,519.20 and 682,414.40 is: 1,021,193.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,345.60 : 1,471,519.20 = 682,414.40 : x
  2. Step 2: Convert to fraction form
    983,345.60/1,471,519.20 = 682,414.40/x
  3. Step 3: Cross multiply
    983,345.60x = 1,471,519.20 × 682,414.40
  4. Step 4: Simplify right side
    983,345.60x = 1,004,185,891,956.48
  5. Step 5: Solve for x
    x = 1,004,185,891,956.48/983,345.60
  6. Step 6: Final answer
    x = 1,021,193.25

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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.