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Finding the Fourth Proportional to 1,659,741.67, 2,290,661.78 and 934,731.12

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Solution

The fourth proportional to 1,659,741.67, 2,290,661.78 and 934,731.12 is: 1,290,051.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659,741.67 : 2,290,661.78 = 934,731.12 : x
  2. Step 2: Convert to fraction form
    1,659,741.67/2,290,661.78 = 934,731.12/x
  3. Step 3: Cross multiply
    1,659,741.67x = 2,290,661.78 × 934,731.12
  4. Step 4: Simplify right side
    1,659,741.67x = 2,141,152,855,076.92
  5. Step 5: Solve for x
    x = 2,141,152,855,076.92/1,659,741.67
  6. Step 6: Final answer
    x = 1,290,051.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.