Home / 681,118.80-1,021,726.80-207,803.40

Finding the Fourth Proportional to 681,118.80, 1,021,726.80 and 207,803.40

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Solution

The fourth proportional to 681,118.80, 1,021,726.80 and 207,803.40 is: 311,719.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,118.80 : 1,021,726.80 = 207,803.40 : x
  2. Step 2: Convert to fraction form
    681,118.80/1,021,726.80 = 207,803.40/x
  3. Step 3: Cross multiply
    681,118.80x = 1,021,726.80 × 207,803.40
  4. Step 4: Simplify right side
    681,118.80x = 212,318,302,911.12
  5. Step 5: Solve for x
    x = 212,318,302,911.12/681,118.80
  6. Step 6: Final answer
    x = 311,719.93

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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.