Home / 2,685,787.20-4,028,680.80-2,391,854.40

Finding the Fourth Proportional to 2,685,787.20, 4,028,680.80 and 2,391,854.40

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Solution

The fourth proportional to 2,685,787.20, 4,028,680.80 and 2,391,854.40 is: 3,587,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685,787.20 : 4,028,680.80 = 2,391,854.40 : x
  2. Step 2: Convert to fraction form
    2,685,787.20/4,028,680.80 = 2,391,854.40/x
  3. Step 3: Cross multiply
    2,685,787.20x = 4,028,680.80 × 2,391,854.40
  4. Step 4: Simplify right side
    2,685,787.20x = 9,636,017,897,675.52
  5. Step 5: Solve for x
    x = 9,636,017,897,675.52/2,685,787.20
  6. Step 6: Final answer
    x = 3,587,781.60

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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.