Home / 2,153,487.81-2,971,789.02-1,223,189.04

Finding the Fourth Proportional to 2,153,487.81, 2,971,789.02 and 1,223,189.04

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Solution

The fourth proportional to 2,153,487.81, 2,971,789.02 and 1,223,189.04 is: 1,687,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,487.81 : 2,971,789.02 = 1,223,189.04 : x
  2. Step 2: Convert to fraction form
    2,153,487.81/2,971,789.02 = 1,223,189.04/x
  3. Step 3: Cross multiply
    2,153,487.81x = 2,971,789.02 × 1,223,189.04
  4. Step 4: Simplify right side
    2,153,487.81x = 3,635,059,758,456.34
  5. Step 5: Solve for x
    x = 3,635,059,758,456.34/2,153,487.81
  6. Step 6: Final answer
    x = 1,687,987.15

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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.