Home / 912,204.60-1,367,847.90-281,036.40

Finding the Fourth Proportional to 912,204.60, 1,367,847.90 and 281,036.40

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Solution

The fourth proportional to 912,204.60, 1,367,847.90 and 281,036.40 is: 421,413.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,204.60 : 1,367,847.90 = 281,036.40 : x
  2. Step 2: Convert to fraction form
    912,204.60/1,367,847.90 = 281,036.40/x
  3. Step 3: Cross multiply
    912,204.60x = 1,367,847.90 × 281,036.40
  4. Step 4: Simplify right side
    912,204.60x = 384,415,049,563.56
  5. Step 5: Solve for x
    x = 384,415,049,563.56/912,204.60
  6. Step 6: Final answer
    x = 421,413.19

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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.