Home / 911,971.72-1,368,026.34-272,224.93

Finding the Fourth Proportional to 911,971.72, 1,368,026.34 and 272,224.93

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Solution

The fourth proportional to 911,971.72, 1,368,026.34 and 272,224.93 is: 408,357.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,971.72 : 1,368,026.34 = 272,224.93 : x
  2. Step 2: Convert to fraction form
    911,971.72/1,368,026.34 = 272,224.93/x
  3. Step 3: Cross multiply
    911,971.72x = 1,368,026.34 × 272,224.93
  4. Step 4: Simplify right side
    911,971.72x = 372,410,874,644.66
  5. Step 5: Solve for x
    x = 372,410,874,644.66/911,971.72
  6. Step 6: Final answer
    x = 408,357.92

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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.