Home / 872,474.34-1,308,458.61-339,876.66

Finding the Fourth Proportional to 872,474.34, 1,308,458.61 and 339,876.66

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Solution

The fourth proportional to 872,474.34, 1,308,458.61 and 339,876.66 is: 509,716.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,474.34 : 1,308,458.61 = 339,876.66 : x
  2. Step 2: Convert to fraction form
    872,474.34/1,308,458.61 = 339,876.66/x
  3. Step 3: Cross multiply
    872,474.34x = 1,308,458.61 × 339,876.66
  4. Step 4: Simplify right side
    872,474.34x = 444,714,542,115.04
  5. Step 5: Solve for x
    x = 444,714,542,115.04/872,474.34
  6. Step 6: Final answer
    x = 509,716.47

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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.