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Finding the Fourth Proportional to 874,930.60, 1,312,233.90 and 243,713.80

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Solution

The fourth proportional to 874,930.60, 1,312,233.90 and 243,713.80 is: 365,525.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,930.60 : 1,312,233.90 = 243,713.80 : x
  2. Step 2: Convert to fraction form
    874,930.60/1,312,233.90 = 243,713.80/x
  3. Step 3: Cross multiply
    874,930.60x = 1,312,233.90 × 243,713.80
  4. Step 4: Simplify right side
    874,930.60x = 319,809,510,257.82
  5. Step 5: Solve for x
    x = 319,809,510,257.82/874,930.60
  6. Step 6: Final answer
    x = 365,525.57

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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.