Home / 912,405.88-1,368,520.86-281,150.20

Finding the Fourth Proportional to 912,405.88, 1,368,520.86 and 281,150.20

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Solution

The fourth proportional to 912,405.88, 1,368,520.86 and 281,150.20 is: 421,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,405.88 : 1,368,520.86 = 281,150.20 : x
  2. Step 2: Convert to fraction form
    912,405.88/1,368,520.86 = 281,150.20/x
  3. Step 3: Cross multiply
    912,405.88x = 1,368,520.86 × 281,150.20
  4. Step 4: Simplify right side
    912,405.88x = 384,759,913,493.17
  5. Step 5: Solve for x
    x = 384,759,913,493.17/912,405.88
  6. Step 6: Final answer
    x = 421,698.20

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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.