Home / 1,687,261.68-2,328,421.24-923,315.28

Finding the Fourth Proportional to 1,687,261.68, 2,328,421.24 and 923,315.28

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Solution

The fourth proportional to 1,687,261.68, 2,328,421.24 and 923,315.28 is: 1,274,175.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,261.68 : 2,328,421.24 = 923,315.28 : x
  2. Step 2: Convert to fraction form
    1,687,261.68/2,328,421.24 = 923,315.28/x
  3. Step 3: Cross multiply
    1,687,261.68x = 2,328,421.24 × 923,315.28
  4. Step 4: Simplify right side
    1,687,261.68x = 2,149,866,909,168.55
  5. Step 5: Solve for x
    x = 2,149,866,909,168.55/1,687,261.68
  6. Step 6: Final answer
    x = 1,274,175.15

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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.