Home / 1,108,987.30-1,664,224.01-389,331.15

Finding the Fourth Proportional to 1,108,987.30, 1,664,224.01 and 389,331.15

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Solution

The fourth proportional to 1,108,987.30, 1,664,224.01 and 389,331.15 is: 584,257.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,987.30 : 1,664,224.01 = 389,331.15 : x
  2. Step 2: Convert to fraction form
    1,108,987.30/1,664,224.01 = 389,331.15/x
  3. Step 3: Cross multiply
    1,108,987.30x = 1,664,224.01 × 389,331.15
  4. Step 4: Simplify right side
    1,108,987.30x = 647,934,247,670.91
  5. Step 5: Solve for x
    x = 647,934,247,670.91/1,108,987.30
  6. Step 6: Final answer
    x = 584,257.59

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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.