Home / 1,221,335.10-1,832,002.65-1,086,032.70

Finding the Fourth Proportional to 1,221,335.10, 1,832,002.65 and 1,086,032.70

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Solution

The fourth proportional to 1,221,335.10, 1,832,002.65 and 1,086,032.70 is: 1,629,049.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,335.10 : 1,832,002.65 = 1,086,032.70 : x
  2. Step 2: Convert to fraction form
    1,221,335.10/1,832,002.65 = 1,086,032.70/x
  3. Step 3: Cross multiply
    1,221,335.10x = 1,832,002.65 × 1,086,032.70
  4. Step 4: Simplify right side
    1,221,335.10x = 1,989,614,784,386.65
  5. Step 5: Solve for x
    x = 1,989,614,784,386.65/1,221,335.10
  6. Step 6: Final answer
    x = 1,629,049.05

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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.