Home / 2,711,898.80-4,067,870.88-690,145.28

Finding the Fourth Proportional to 2,711,898.80, 4,067,870.88 and 690,145.28

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Solution

The fourth proportional to 2,711,898.80, 4,067,870.88 and 690,145.28 is: 1,035,223.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,711,898.80 : 4,067,870.88 = 690,145.28 : x
  2. Step 2: Convert to fraction form
    2,711,898.80/4,067,870.88 = 690,145.28/x
  3. Step 3: Cross multiply
    2,711,898.80x = 4,067,870.88 × 690,145.28
  4. Step 4: Simplify right side
    2,711,898.80x = 2,807,421,887,481.45
  5. Step 5: Solve for x
    x = 2,807,421,887,481.45/2,711,898.80
  6. Step 6: Final answer
    x = 1,035,223.69

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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.