Home / 820,371.90-1,230,557.85-610,419.90

Finding the Fourth Proportional to 820,371.90, 1,230,557.85 and 610,419.90

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Solution

The fourth proportional to 820,371.90, 1,230,557.85 and 610,419.90 is: 915,629.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,371.90 : 1,230,557.85 = 610,419.90 : x
  2. Step 2: Convert to fraction form
    820,371.90/1,230,557.85 = 610,419.90/x
  3. Step 3: Cross multiply
    820,371.90x = 1,230,557.85 × 610,419.90
  4. Step 4: Simplify right side
    820,371.90x = 751,156,999,741.22
  5. Step 5: Solve for x
    x = 751,156,999,741.22/820,371.90
  6. Step 6: Final answer
    x = 915,629.85

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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.