Home / 861,439.53-1,292,343.93-262,448.97

Finding the Fourth Proportional to 861,439.53, 1,292,343.93 and 262,448.97

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Solution

The fourth proportional to 861,439.53, 1,292,343.93 and 262,448.97 is: 393,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,439.53 : 1,292,343.93 = 262,448.97 : x
  2. Step 2: Convert to fraction form
    861,439.53/1,292,343.93 = 262,448.97/x
  3. Step 3: Cross multiply
    861,439.53x = 1,292,343.93 × 262,448.97
  4. Step 4: Simplify right side
    861,439.53x = 339,174,333,314.25
  5. Step 5: Solve for x
    x = 339,174,333,314.25/861,439.53
  6. Step 6: Final answer
    x = 393,729.71

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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.