Home / 739,990.76-1,109,791.73-319,173.08

Finding the Fourth Proportional to 739,990.76, 1,109,791.73 and 319,173.08

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Solution

The fourth proportional to 739,990.76, 1,109,791.73 and 319,173.08 is: 478,675.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,990.76 : 1,109,791.73 = 319,173.08 : x
  2. Step 2: Convert to fraction form
    739,990.76/1,109,791.73 = 319,173.08/x
  3. Step 3: Cross multiply
    739,990.76x = 1,109,791.73 × 319,173.08
  4. Step 4: Simplify right side
    739,990.76x = 354,215,639,871.60
  5. Step 5: Solve for x
    x = 354,215,639,871.60/739,990.76
  6. Step 6: Final answer
    x = 478,675.76

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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.