Home / 861,400.26-1,292,136.02-254,188.58

Finding the Fourth Proportional to 861,400.26, 1,292,136.02 and 254,188.58

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Solution

The fourth proportional to 861,400.26, 1,292,136.02 and 254,188.58 is: 381,293.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,400.26 : 1,292,136.02 = 254,188.58 : x
  2. Step 2: Convert to fraction form
    861,400.26/1,292,136.02 = 254,188.58/x
  3. Step 3: Cross multiply
    861,400.26x = 1,292,136.02 × 254,188.58
  4. Step 4: Simplify right side
    861,400.26x = 328,446,220,090.65
  5. Step 5: Solve for x
    x = 328,446,220,090.65/861,400.26
  6. Step 6: Final answer
    x = 381,293.38

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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.