Home / 912,108.96-1,368,166.68-281,019.60

Finding the Fourth Proportional to 912,108.96, 1,368,166.68 and 281,019.60

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Solution

The fourth proportional to 912,108.96, 1,368,166.68 and 281,019.60 is: 421,530.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,108.96 : 1,368,166.68 = 281,019.60 : x
  2. Step 2: Convert to fraction form
    912,108.96/1,368,166.68 = 281,019.60/x
  3. Step 3: Cross multiply
    912,108.96x = 1,368,166.68 × 281,019.60
  4. Step 4: Simplify right side
    912,108.96x = 384,481,653,146.93
  5. Step 5: Solve for x
    x = 384,481,653,146.93/912,108.96
  6. Step 6: Final answer
    x = 421,530.40

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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.