Home / 2,812,721.68-4,219,279.32-1,392,396.40

Finding the Fourth Proportional to 2,812,721.68, 4,219,279.32 and 1,392,396.40

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Solution

The fourth proportional to 2,812,721.68, 4,219,279.32 and 1,392,396.40 is: 2,088,692.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812,721.68 : 4,219,279.32 = 1,392,396.40 : x
  2. Step 2: Convert to fraction form
    2,812,721.68/4,219,279.32 = 1,392,396.40/x
  3. Step 3: Cross multiply
    2,812,721.68x = 4,219,279.32 × 1,392,396.40
  4. Step 4: Simplify right side
    2,812,721.68x = 5,874,909,335,762.45
  5. Step 5: Solve for x
    x = 5,874,909,335,762.45/2,812,721.68
  6. Step 6: Final answer
    x = 2,088,692.02

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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.