Home / 1,378,929.60-2,068,394.40-381,657.60

Finding the Fourth Proportional to 1,378,929.60, 2,068,394.40 and 381,657.60

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Solution

The fourth proportional to 1,378,929.60, 2,068,394.40 and 381,657.60 is: 572,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,929.60 : 2,068,394.40 = 381,657.60 : x
  2. Step 2: Convert to fraction form
    1,378,929.60/2,068,394.40 = 381,657.60/x
  3. Step 3: Cross multiply
    1,378,929.60x = 2,068,394.40 × 381,657.60
  4. Step 4: Simplify right side
    1,378,929.60x = 789,418,442,557.44
  5. Step 5: Solve for x
    x = 789,418,442,557.44/1,378,929.60
  6. Step 6: Final answer
    x = 572,486.40

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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.