Home / 812,559.42-1,218,502.17-307,033.02

Finding the Fourth Proportional to 812,559.42, 1,218,502.17 and 307,033.02

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Solution

The fourth proportional to 812,559.42, 1,218,502.17 and 307,033.02 is: 460,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,559.42 : 1,218,502.17 = 307,033.02 : x
  2. Step 2: Convert to fraction form
    812,559.42/1,218,502.17 = 307,033.02/x
  3. Step 3: Cross multiply
    812,559.42x = 1,218,502.17 × 307,033.02
  4. Step 4: Simplify right side
    812,559.42x = 374,120,401,131.65
  5. Step 5: Solve for x
    x = 374,120,401,131.65/812,559.42
  6. Step 6: Final answer
    x = 460,422.21

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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.