Home / 2,658,842.64-3,987,427.41-861,309.06

Finding the Fourth Proportional to 2,658,842.64, 3,987,427.41 and 861,309.06

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Solution

The fourth proportional to 2,658,842.64, 3,987,427.41 and 861,309.06 is: 1,291,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658,842.64 : 3,987,427.41 = 861,309.06 : x
  2. Step 2: Convert to fraction form
    2,658,842.64/3,987,427.41 = 861,309.06/x
  3. Step 3: Cross multiply
    2,658,842.64x = 3,987,427.41 × 861,309.06
  4. Step 4: Simplify right side
    2,658,842.64x = 3,434,407,354,325.34
  5. Step 5: Solve for x
    x = 3,434,407,354,325.34/2,658,842.64
  6. Step 6: Final answer
    x = 1,291,692.60

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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.