Home / 1,159,969.20-1,739,867.40-485,876.40

Finding the Fourth Proportional to 1,159,969.20, 1,739,867.40 and 485,876.40

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Solution

The fourth proportional to 1,159,969.20, 1,739,867.40 and 485,876.40 is: 728,778.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,969.20 : 1,739,867.40 = 485,876.40 : x
  2. Step 2: Convert to fraction form
    1,159,969.20/1,739,867.40 = 485,876.40/x
  3. Step 3: Cross multiply
    1,159,969.20x = 1,739,867.40 × 485,876.40
  4. Step 4: Simplify right side
    1,159,969.20x = 845,360,508,789.36
  5. Step 5: Solve for x
    x = 845,360,508,789.36/1,159,969.20
  6. Step 6: Final answer
    x = 728,778.41

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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.