Home / 2,650,807.80-3,976,211.70-1,388,471.40

Finding the Fourth Proportional to 2,650,807.80, 3,976,211.70 and 1,388,471.40

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Solution

The fourth proportional to 2,650,807.80, 3,976,211.70 and 1,388,471.40 is: 2,082,707.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650,807.80 : 3,976,211.70 = 1,388,471.40 : x
  2. Step 2: Convert to fraction form
    2,650,807.80/3,976,211.70 = 1,388,471.40/x
  3. Step 3: Cross multiply
    2,650,807.80x = 3,976,211.70 × 1,388,471.40
  4. Step 4: Simplify right side
    2,650,807.80x = 5,520,856,225,795.38
  5. Step 5: Solve for x
    x = 5,520,856,225,795.38/2,650,807.80
  6. Step 6: Final answer
    x = 2,082,707.10

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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.