Home / 591,241.59-815,913.18-319,309.54

Finding the Fourth Proportional to 591,241.59, 815,913.18 and 319,309.54

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Solution

The fourth proportional to 591,241.59, 815,913.18 and 319,309.54 is: 440,647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,241.59 : 815,913.18 = 319,309.54 : x
  2. Step 2: Convert to fraction form
    591,241.59/815,913.18 = 319,309.54/x
  3. Step 3: Cross multiply
    591,241.59x = 815,913.18 × 319,309.54
  4. Step 4: Simplify right side
    591,241.59x = 260,528,860,145.95
  5. Step 5: Solve for x
    x = 260,528,860,145.95/591,241.59
  6. Step 6: Final answer
    x = 440,647.05

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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.