Home / 1,914,892.20-2,872,338.30-1,317,695.40

Finding the Fourth Proportional to 1,914,892.20, 2,872,338.30 and 1,317,695.40

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Solution

The fourth proportional to 1,914,892.20, 2,872,338.30 and 1,317,695.40 is: 1,976,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914,892.20 : 2,872,338.30 = 1,317,695.40 : x
  2. Step 2: Convert to fraction form
    1,914,892.20/2,872,338.30 = 1,317,695.40/x
  3. Step 3: Cross multiply
    1,914,892.20x = 2,872,338.30 × 1,317,695.40
  4. Step 4: Simplify right side
    1,914,892.20x = 3,784,866,965,153.82
  5. Step 5: Solve for x
    x = 3,784,866,965,153.82/1,914,892.20
  6. Step 6: Final answer
    x = 1,976,543.10

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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.