Home / 830,052.30-1,245,078.45-261,505.20

Finding the Fourth Proportional to 830,052.30, 1,245,078.45 and 261,505.20

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Solution

The fourth proportional to 830,052.30, 1,245,078.45 and 261,505.20 is: 392,257.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,052.30 : 1,245,078.45 = 261,505.20 : x
  2. Step 2: Convert to fraction form
    830,052.30/1,245,078.45 = 261,505.20/x
  3. Step 3: Cross multiply
    830,052.30x = 1,245,078.45 × 261,505.20
  4. Step 4: Simplify right side
    830,052.30x = 325,594,489,082.94
  5. Step 5: Solve for x
    x = 325,594,489,082.94/830,052.30
  6. Step 6: Final answer
    x = 392,257.80

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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.