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Finding the Fourth Proportional to 614,599.34, 921,928.17 and 298,679.90

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Solution

The fourth proportional to 614,599.34, 921,928.17 and 298,679.90 is: 448,034.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,599.34 : 921,928.17 = 298,679.90 : x
  2. Step 2: Convert to fraction form
    614,599.34/921,928.17 = 298,679.90/x
  3. Step 3: Cross multiply
    614,599.34x = 921,928.17 × 298,679.90
  4. Step 4: Simplify right side
    614,599.34x = 275,361,413,622.78
  5. Step 5: Solve for x
    x = 275,361,413,622.78/614,599.34
  6. Step 6: Final answer
    x = 448,034.02

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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.