Home / 628,906.53-867,882.34-342,426.60

Finding the Fourth Proportional to 628,906.53, 867,882.34 and 342,426.60

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Solution

The fourth proportional to 628,906.53, 867,882.34 and 342,426.60 is: 472,543.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,906.53 : 867,882.34 = 342,426.60 : x
  2. Step 2: Convert to fraction form
    628,906.53/867,882.34 = 342,426.60/x
  3. Step 3: Cross multiply
    628,906.53x = 867,882.34 × 342,426.60
  4. Step 4: Simplify right side
    628,906.53x = 297,186,000,199.88
  5. Step 5: Solve for x
    x = 297,186,000,199.88/628,906.53
  6. Step 6: Final answer
    x = 472,543.99

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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.