Home / 2,607,678.91-3,912,078.09-878,719.57

Finding the Fourth Proportional to 2,607,678.91, 3,912,078.09 and 878,719.57

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Solution

The fourth proportional to 2,607,678.91, 3,912,078.09 and 878,719.57 is: 1,318,267.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607,678.91 : 3,912,078.09 = 878,719.57 : x
  2. Step 2: Convert to fraction form
    2,607,678.91/3,912,078.09 = 878,719.57/x
  3. Step 3: Cross multiply
    2,607,678.91x = 3,912,078.09 × 878,719.57
  4. Step 4: Simplify right side
    2,607,678.91x = 3,437,619,570,566.22
  5. Step 5: Solve for x
    x = 3,437,619,570,566.22/2,607,678.91
  6. Step 6: Final answer
    x = 1,318,267.96

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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.