Home / 2,712,885.60-4,069,976.40-819,645.60

Finding the Fourth Proportional to 2,712,885.60, 4,069,976.40 and 819,645.60

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Solution

The fourth proportional to 2,712,885.60, 4,069,976.40 and 819,645.60 is: 1,229,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712,885.60 : 4,069,976.40 = 819,645.60 : x
  2. Step 2: Convert to fraction form
    2,712,885.60/4,069,976.40 = 819,645.60/x
  3. Step 3: Cross multiply
    2,712,885.60x = 4,069,976.40 × 819,645.60
  4. Step 4: Simplify right side
    2,712,885.60x = 3,335,938,248,363.84
  5. Step 5: Solve for x
    x = 3,335,938,248,363.84/2,712,885.60
  6. Step 6: Final answer
    x = 1,229,664.18

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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.