Home / 1,678,446.78-2,517,667.88-779,396.90

Finding the Fourth Proportional to 1,678,446.78, 2,517,667.88 and 779,396.90

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Solution

The fourth proportional to 1,678,446.78, 2,517,667.88 and 779,396.90 is: 1,169,094.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,446.78 : 2,517,667.88 = 779,396.90 : x
  2. Step 2: Convert to fraction form
    1,678,446.78/2,517,667.88 = 779,396.90/x
  3. Step 3: Cross multiply
    1,678,446.78x = 2,517,667.88 × 779,396.90
  4. Step 4: Simplify right side
    1,678,446.78x = 1,962,262,540,901.57
  5. Step 5: Solve for x
    x = 1,962,262,540,901.57/1,678,446.78
  6. Step 6: Final answer
    x = 1,169,094.29

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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.