Home / 679,034.17-1,019,029.89-319,221.45

Finding the Fourth Proportional to 679,034.17, 1,019,029.89 and 319,221.45

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Solution

The fourth proportional to 679,034.17, 1,019,029.89 and 319,221.45 is: 479,057.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,034.17 : 1,019,029.89 = 319,221.45 : x
  2. Step 2: Convert to fraction form
    679,034.17/1,019,029.89 = 319,221.45/x
  3. Step 3: Cross multiply
    679,034.17x = 1,019,029.89 × 319,221.45
  4. Step 4: Simplify right side
    679,034.17x = 325,296,199,079.14
  5. Step 5: Solve for x
    x = 325,296,199,079.14/679,034.17
  6. Step 6: Final answer
    x = 479,057.19

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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.