Home / 818,015.13-1,226,874.96-285,688.35

Finding the Fourth Proportional to 818,015.13, 1,226,874.96 and 285,688.35

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Solution

The fourth proportional to 818,015.13, 1,226,874.96 and 285,688.35 is: 428,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,015.13 : 1,226,874.96 = 285,688.35 : x
  2. Step 2: Convert to fraction form
    818,015.13/1,226,874.96 = 285,688.35/x
  3. Step 3: Cross multiply
    818,015.13x = 1,226,874.96 × 285,688.35
  4. Step 4: Simplify right side
    818,015.13x = 350,503,882,978.72
  5. Step 5: Solve for x
    x = 350,503,882,978.72/818,015.13
  6. Step 6: Final answer
    x = 428,480.93

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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.