Home / 1,949,463.17-2,690,078.63-1,078,279.11

Finding the Fourth Proportional to 1,949,463.17, 2,690,078.63 and 1,078,279.11

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Solution

The fourth proportional to 1,949,463.17, 2,690,078.63 and 1,078,279.11 is: 1,487,925.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949,463.17 : 2,690,078.63 = 1,078,279.11 : x
  2. Step 2: Convert to fraction form
    1,949,463.17/2,690,078.63 = 1,078,279.11/x
  3. Step 3: Cross multiply
    1,949,463.17x = 2,690,078.63 × 1,078,279.11
  4. Step 4: Simplify right side
    1,949,463.17x = 2,900,655,603,769.91
  5. Step 5: Solve for x
    x = 2,900,655,603,769.91/1,949,463.17
  6. Step 6: Final answer
    x = 1,487,925.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.