Home / 628,614.28-867,487.66-342,136.42

Finding the Fourth Proportional to 628,614.28, 867,487.66 and 342,136.42

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Solution

The fourth proportional to 628,614.28, 867,487.66 and 342,136.42 is: 472,148.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,614.28 : 867,487.66 = 342,136.42 : x
  2. Step 2: Convert to fraction form
    628,614.28/867,487.66 = 342,136.42/x
  3. Step 3: Cross multiply
    628,614.28x = 867,487.66 × 342,136.42
  4. Step 4: Simplify right side
    628,614.28x = 296,799,122,386.58
  5. Step 5: Solve for x
    x = 296,799,122,386.58/628,614.28
  6. Step 6: Final answer
    x = 472,148.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.