Home / 343,721.20-514,998.60-284,234.80

Finding the Fourth Proportional to 343,721.20, 514,998.60 and 284,234.80

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Solution

The fourth proportional to 343,721.20, 514,998.60 and 284,234.80 is: 425,869.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,721.20 : 514,998.60 = 284,234.80 : x
  2. Step 2: Convert to fraction form
    343,721.20/514,998.60 = 284,234.80/x
  3. Step 3: Cross multiply
    343,721.20x = 514,998.60 × 284,234.80
  4. Step 4: Simplify right side
    343,721.20x = 146,380,524,071.28
  5. Step 5: Solve for x
    x = 146,380,524,071.28/343,721.20
  6. Step 6: Final answer
    x = 425,869.93

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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.