Home / 912,112.88-1,368,390.76-281,026.67

Finding the Fourth Proportional to 912,112.88, 1,368,390.76 and 281,026.67

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Solution

The fourth proportional to 912,112.88, 1,368,390.76 and 281,026.67 is: 421,608.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,112.88 : 1,368,390.76 = 281,026.67 : x
  2. Step 2: Convert to fraction form
    912,112.88/1,368,390.76 = 281,026.67/x
  3. Step 3: Cross multiply
    912,112.88x = 1,368,390.76 × 281,026.67
  4. Step 4: Simplify right side
    912,112.88x = 384,554,290,997.05
  5. Step 5: Solve for x
    x = 384,554,290,997.05/912,112.88
  6. Step 6: Final answer
    x = 421,608.23

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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.