Home / 424,393.02-636,869.97-199,817.66

Finding the Fourth Proportional to 424,393.02, 636,869.97 and 199,817.66

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Solution

The fourth proportional to 424,393.02, 636,869.97 and 199,817.66 is: 299,858.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,393.02 : 636,869.97 = 199,817.66 : x
  2. Step 2: Convert to fraction form
    424,393.02/636,869.97 = 199,817.66/x
  3. Step 3: Cross multiply
    424,393.02x = 636,869.97 × 199,817.66
  4. Step 4: Simplify right side
    424,393.02x = 127,257,868,721.85
  5. Step 5: Solve for x
    x = 127,257,868,721.85/424,393.02
  6. Step 6: Final answer
    x = 299,858.53

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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.