Home / 818,318.08-1,227,480.36-285,837.04

Finding the Fourth Proportional to 818,318.08, 1,227,480.36 and 285,837.04

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Solution

The fourth proportional to 818,318.08, 1,227,480.36 and 285,837.04 is: 428,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,318.08 : 1,227,480.36 = 285,837.04 : x
  2. Step 2: Convert to fraction form
    818,318.08/1,227,480.36 = 285,837.04/x
  3. Step 3: Cross multiply
    818,318.08x = 1,227,480.36 × 285,837.04
  4. Step 4: Simplify right side
    818,318.08x = 350,859,352,760.53
  5. Step 5: Solve for x
    x = 350,859,352,760.53/818,318.08
  6. Step 6: Final answer
    x = 428,756.69

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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.