Home / 850,682.61-1,275,990.90-210,987.95

Finding the Fourth Proportional to 850,682.61, 1,275,990.90 and 210,987.95

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Solution

The fourth proportional to 850,682.61, 1,275,990.90 and 210,987.95 is: 316,473.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,682.61 : 1,275,990.90 = 210,987.95 : x
  2. Step 2: Convert to fraction form
    850,682.61/1,275,990.90 = 210,987.95/x
  3. Step 3: Cross multiply
    850,682.61x = 1,275,990.90 × 210,987.95
  4. Step 4: Simplify right side
    850,682.61x = 269,218,697,829.70
  5. Step 5: Solve for x
    x = 269,218,697,829.70/850,682.61
  6. Step 6: Final answer
    x = 316,473.73

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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.