Home / 2,213,200.80-3,317,176.80-1,987,502.40

Finding the Fourth Proportional to 2,213,200.80, 3,317,176.80 and 1,987,502.40

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Solution

The fourth proportional to 2,213,200.80, 3,317,176.80 and 1,987,502.40 is: 2,978,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213,200.80 : 3,317,176.80 = 1,987,502.40 : x
  2. Step 2: Convert to fraction form
    2,213,200.80/3,317,176.80 = 1,987,502.40/x
  3. Step 3: Cross multiply
    2,213,200.80x = 3,317,176.80 × 1,987,502.40
  4. Step 4: Simplify right side
    2,213,200.80x = 6,592,896,851,224.32
  5. Step 5: Solve for x
    x = 6,592,896,851,224.32/2,213,200.80
  6. Step 6: Final answer
    x = 2,978,896.83

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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.