Home / 2,812,719.68-4,219,276.32-1,392,394.40

Finding the Fourth Proportional to 2,812,719.68, 4,219,276.32 and 1,392,394.40

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Solution

The fourth proportional to 2,812,719.68, 4,219,276.32 and 1,392,394.40 is: 2,088,689.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812,719.68 : 4,219,276.32 = 1,392,394.40 : x
  2. Step 2: Convert to fraction form
    2,812,719.68/4,219,276.32 = 1,392,394.40/x
  3. Step 3: Cross multiply
    2,812,719.68x = 4,219,276.32 × 1,392,394.40
  4. Step 4: Simplify right side
    2,812,719.68x = 5,874,896,720,020.61
  5. Step 5: Solve for x
    x = 5,874,896,720,020.61/2,812,719.68
  6. Step 6: Final answer
    x = 2,088,689.02

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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.