Home / 2,987,872.20-4,475,903.40-1,637,618.40

Finding the Fourth Proportional to 2,987,872.20, 4,475,903.40 and 1,637,618.40

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Solution

The fourth proportional to 2,987,872.20, 4,475,903.40 and 1,637,618.40 is: 2,453,191.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987,872.20 : 4,475,903.40 = 1,637,618.40 : x
  2. Step 2: Convert to fraction form
    2,987,872.20/4,475,903.40 = 1,637,618.40/x
  3. Step 3: Cross multiply
    2,987,872.20x = 4,475,903.40 × 1,637,618.40
  4. Step 4: Simplify right side
    2,987,872.20x = 7,329,821,764,462.56
  5. Step 5: Solve for x
    x = 7,329,821,764,462.56/2,987,872.20
  6. Step 6: Final answer
    x = 2,453,191.19

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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.