Home / 861,515.13-1,292,465.43-262,523.16

Finding the Fourth Proportional to 861,515.13, 1,292,465.43 and 262,523.16

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Solution

The fourth proportional to 861,515.13, 1,292,465.43 and 262,523.16 is: 393,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,515.13 : 1,292,465.43 = 262,523.16 : x
  2. Step 2: Convert to fraction form
    861,515.13/1,292,465.43 = 262,523.16/x
  3. Step 3: Cross multiply
    861,515.13x = 1,292,465.43 × 262,523.16
  4. Step 4: Simplify right side
    861,515.13x = 339,302,108,874.36
  5. Step 5: Solve for x
    x = 339,302,108,874.36/861,515.13
  6. Step 6: Final answer
    x = 393,843.47

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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.