Home / 2,158,489.74-2,978,637.53-1,191,599.29

Finding the Fourth Proportional to 2,158,489.74, 2,978,637.53 and 1,191,599.29

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Solution

The fourth proportional to 2,158,489.74, 2,978,637.53 and 1,191,599.29 is: 1,644,363.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,489.74 : 2,978,637.53 = 1,191,599.29 : x
  2. Step 2: Convert to fraction form
    2,158,489.74/2,978,637.53 = 1,191,599.29/x
  3. Step 3: Cross multiply
    2,158,489.74x = 2,978,637.53 × 1,191,599.29
  4. Step 4: Simplify right side
    2,158,489.74x = 3,549,342,365,915.35
  5. Step 5: Solve for x
    x = 3,549,342,365,915.35/2,158,489.74
  6. Step 6: Final answer
    x = 1,644,363.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.