Home / 912,153.60-1,368,380.16-281,067.52

Finding the Fourth Proportional to 912,153.60, 1,368,380.16 and 281,067.52

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Solution

The fourth proportional to 912,153.60, 1,368,380.16 and 281,067.52 is: 421,647.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,153.60 : 1,368,380.16 = 281,067.52 : x
  2. Step 2: Convert to fraction form
    912,153.60/1,368,380.16 = 281,067.52/x
  3. Step 3: Cross multiply
    912,153.60x = 1,368,380.16 × 281,067.52
  4. Step 4: Simplify right side
    912,153.60x = 384,607,217,988.40
  5. Step 5: Solve for x
    x = 384,607,217,988.40/912,153.60
  6. Step 6: Final answer
    x = 421,647.43

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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.