Home / 860,076.60-1,290,119.02-261,042.96

Finding the Fourth Proportional to 860,076.60, 1,290,119.02 and 261,042.96

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Solution

The fourth proportional to 860,076.60, 1,290,119.02 and 261,042.96 is: 391,565.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,076.60 : 1,290,119.02 = 261,042.96 : x
  2. Step 2: Convert to fraction form
    860,076.60/1,290,119.02 = 261,042.96/x
  3. Step 3: Cross multiply
    860,076.60x = 1,290,119.02 × 261,042.96
  4. Step 4: Simplify right side
    860,076.60x = 336,776,487,733.10
  5. Step 5: Solve for x
    x = 336,776,487,733.10/860,076.60
  6. Step 6: Final answer
    x = 391,565.69

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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.