Home / 2,145,375.68-3,218,478.40-815,576

Finding the Fourth Proportional to 2,145,375.68, 3,218,478.40 and 815,576

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Solution

The fourth proportional to 2,145,375.68, 3,218,478.40 and 815,576 is: 1,223,521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,375.68 : 3,218,478.40 = 815,576 : x
  2. Step 2: Convert to fraction form
    2,145,375.68/3,218,478.40 = 815,576/x
  3. Step 3: Cross multiply
    2,145,375.68x = 3,218,478.40 × 815,576
  4. Step 4: Simplify right side
    2,145,375.68x = 2,624,913,739,558.40
  5. Step 5: Solve for x
    x = 2,624,913,739,558.40/2,145,375.68
  6. Step 6: Final answer
    x = 1,223,521.72

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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.