Home / 912,400.26-1,368,512.73-281,144.58

Finding the Fourth Proportional to 912,400.26, 1,368,512.73 and 281,144.58

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Solution

The fourth proportional to 912,400.26, 1,368,512.73 and 281,144.58 is: 421,689.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,400.26 : 1,368,512.73 = 281,144.58 : x
  2. Step 2: Convert to fraction form
    912,400.26/1,368,512.73 = 281,144.58/x
  3. Step 3: Cross multiply
    912,400.26x = 1,368,512.73 × 281,144.58
  4. Step 4: Simplify right side
    912,400.26x = 384,749,936,700.50
  5. Step 5: Solve for x
    x = 384,749,936,700.50/912,400.26
  6. Step 6: Final answer
    x = 421,689.86

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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.