Home / 758,489.20-1,137,526.44-285,138.16

Finding the Fourth Proportional to 758,489.20, 1,137,526.44 and 285,138.16

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Solution

The fourth proportional to 758,489.20, 1,137,526.44 and 285,138.16 is: 427,629.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,489.20 : 1,137,526.44 = 285,138.16 : x
  2. Step 2: Convert to fraction form
    758,489.20/1,137,526.44 = 285,138.16/x
  3. Step 3: Cross multiply
    758,489.20x = 1,137,526.44 × 285,138.16
  4. Step 4: Simplify right side
    758,489.20x = 324,352,196,052.95
  5. Step 5: Solve for x
    x = 324,352,196,052.95/758,489.20
  6. Step 6: Final answer
    x = 427,629.29

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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.