Home / 1,812,207.20-2,718,310.80-1,215,010.40

Finding the Fourth Proportional to 1,812,207.20, 2,718,310.80 and 1,215,010.40

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Solution

The fourth proportional to 1,812,207.20, 2,718,310.80 and 1,215,010.40 is: 1,822,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812,207.20 : 2,718,310.80 = 1,215,010.40 : x
  2. Step 2: Convert to fraction form
    1,812,207.20/2,718,310.80 = 1,215,010.40/x
  3. Step 3: Cross multiply
    1,812,207.20x = 2,718,310.80 × 1,215,010.40
  4. Step 4: Simplify right side
    1,812,207.20x = 3,302,775,892,432.32
  5. Step 5: Solve for x
    x = 3,302,775,892,432.32/1,812,207.20
  6. Step 6: Final answer
    x = 1,822,515.60

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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.