Home / 1,660,790.40-2,487,686.40-1,380,854.40

Finding the Fourth Proportional to 1,660,790.40, 2,487,686.40 and 1,380,854.40

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Solution

The fourth proportional to 1,660,790.40, 2,487,686.40 and 1,380,854.40 is: 2,068,372.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,790.40 : 2,487,686.40 = 1,380,854.40 : x
  2. Step 2: Convert to fraction form
    1,660,790.40/2,487,686.40 = 1,380,854.40/x
  3. Step 3: Cross multiply
    1,660,790.40x = 2,487,686.40 × 1,380,854.40
  4. Step 4: Simplify right side
    1,660,790.40x = 3,435,132,711,260.16
  5. Step 5: Solve for x
    x = 3,435,132,711,260.16/1,660,790.40
  6. Step 6: Final answer
    x = 2,068,372.21

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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.