Home / 2,077,076.90-3,115,615.35-1,279,259.30

Finding the Fourth Proportional to 2,077,076.90, 3,115,615.35 and 1,279,259.30

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Solution

The fourth proportional to 2,077,076.90, 3,115,615.35 and 1,279,259.30 is: 1,918,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077,076.90 : 3,115,615.35 = 1,279,259.30 : x
  2. Step 2: Convert to fraction form
    2,077,076.90/3,115,615.35 = 1,279,259.30/x
  3. Step 3: Cross multiply
    2,077,076.90x = 3,115,615.35 × 1,279,259.30
  4. Step 4: Simplify right side
    2,077,076.90x = 3,985,679,911,710.26
  5. Step 5: Solve for x
    x = 3,985,679,911,710.26/2,077,076.90
  6. Step 6: Final answer
    x = 1,918,888.95

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Double scale
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Similar ratio
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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.