Home / 873,385.12-1,309,634.52-399,664.54

Finding the Fourth Proportional to 873,385.12, 1,309,634.52 and 399,664.54

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Solution

The fourth proportional to 873,385.12, 1,309,634.52 and 399,664.54 is: 599,294.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,385.12 : 1,309,634.52 = 399,664.54 : x
  2. Step 2: Convert to fraction form
    873,385.12/1,309,634.52 = 399,664.54/x
  3. Step 3: Cross multiply
    873,385.12x = 1,309,634.52 × 399,664.54
  4. Step 4: Simplify right side
    873,385.12x = 523,414,478,003.92
  5. Step 5: Solve for x
    x = 523,414,478,003.92/873,385.12
  6. Step 6: Final answer
    x = 599,294.02

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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.