Home / 912,174.03-1,368,294.17-313,131.65

Finding the Fourth Proportional to 912,174.03, 1,368,294.17 and 313,131.65

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Solution

The fourth proportional to 912,174.03, 1,368,294.17 and 313,131.65 is: 469,708.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,174.03 : 1,368,294.17 = 313,131.65 : x
  2. Step 2: Convert to fraction form
    912,174.03/1,368,294.17 = 313,131.65/x
  3. Step 3: Cross multiply
    912,174.03x = 1,368,294.17 × 313,131.65
  4. Step 4: Simplify right side
    912,174.03x = 428,456,202,730.35
  5. Step 5: Solve for x
    x = 428,456,202,730.35/912,174.03
  6. Step 6: Final answer
    x = 469,708.84

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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.