Home / 912,418.13-1,368,539.24-281,162.45

Finding the Fourth Proportional to 912,418.13, 1,368,539.24 and 281,162.45

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Solution

The fourth proportional to 912,418.13, 1,368,539.24 and 281,162.45 is: 421,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,418.13 : 1,368,539.24 = 281,162.45 : x
  2. Step 2: Convert to fraction form
    912,418.13/1,368,539.24 = 281,162.45/x
  3. Step 3: Cross multiply
    912,418.13x = 1,368,539.24 × 281,162.45
  4. Step 4: Simplify right side
    912,418.13x = 384,781,844,233.73
  5. Step 5: Solve for x
    x = 384,781,844,233.73/912,418.13
  6. Step 6: Final answer
    x = 421,716.57

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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.