Home / 2,775,659.40-3,830,196.78-1,687,781.88

Finding the Fourth Proportional to 2,775,659.40, 3,830,196.78 and 1,687,781.88

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Solution

The fourth proportional to 2,775,659.40, 3,830,196.78 and 1,687,781.88 is: 2,329,009.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775,659.40 : 3,830,196.78 = 1,687,781.88 : x
  2. Step 2: Convert to fraction form
    2,775,659.40/3,830,196.78 = 1,687,781.88/x
  3. Step 3: Cross multiply
    2,775,659.40x = 3,830,196.78 × 1,687,781.88
  4. Step 4: Simplify right side
    2,775,659.40x = 6,464,536,722,118.35
  5. Step 5: Solve for x
    x = 6,464,536,722,118.35/2,775,659.40
  6. Step 6: Final answer
    x = 2,329,009.36

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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.