Home / 912,111.75-1,368,389.07-281,025.54

Finding the Fourth Proportional to 912,111.75, 1,368,389.07 and 281,025.54

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Solution

The fourth proportional to 912,111.75, 1,368,389.07 and 281,025.54 is: 421,606.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,111.75 : 1,368,389.07 = 281,025.54 : x
  2. Step 2: Convert to fraction form
    912,111.75/1,368,389.07 = 281,025.54/x
  3. Step 3: Cross multiply
    912,111.75x = 1,368,389.07 × 281,025.54
  4. Step 4: Simplify right side
    912,111.75x = 384,552,277,326.85
  5. Step 5: Solve for x
    x = 384,552,277,326.85/912,111.75
  6. Step 6: Final answer
    x = 421,606.54

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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.