Home / 676,999.70-1,015,207.95-339,910.10

Finding the Fourth Proportional to 676,999.70, 1,015,207.95 and 339,910.10

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Solution

The fourth proportional to 676,999.70, 1,015,207.95 and 339,910.10 is: 509,718.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,999.70 : 1,015,207.95 = 339,910.10 : x
  2. Step 2: Convert to fraction form
    676,999.70/1,015,207.95 = 339,910.10/x
  3. Step 3: Cross multiply
    676,999.70x = 1,015,207.95 × 339,910.10
  4. Step 4: Simplify right side
    676,999.70x = 345,079,435,805.30
  5. Step 5: Solve for x
    x = 345,079,435,805.30/676,999.70
  6. Step 6: Final answer
    x = 509,718.74

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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.