Home / 831,978.56-1,248,154.55-263,393.66

Finding the Fourth Proportional to 831,978.56, 1,248,154.55 and 263,393.66

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Solution

The fourth proportional to 831,978.56, 1,248,154.55 and 263,393.66 is: 395,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,978.56 : 1,248,154.55 = 263,393.66 : x
  2. Step 2: Convert to fraction form
    831,978.56/1,248,154.55 = 263,393.66/x
  3. Step 3: Cross multiply
    831,978.56x = 1,248,154.55 × 263,393.66
  4. Step 4: Simplify right side
    831,978.56x = 328,755,987,612.41
  5. Step 5: Solve for x
    x = 328,755,987,612.41/831,978.56
  6. Step 6: Final answer
    x = 395,149.59

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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.