Home / 1,091,431.92-1,638,171.72-671,527.92

Finding the Fourth Proportional to 1,091,431.92, 1,638,171.72 and 671,527.92

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Solution

The fourth proportional to 1,091,431.92, 1,638,171.72 and 671,527.92 is: 1,007,921.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,431.92 : 1,638,171.72 = 671,527.92 : x
  2. Step 2: Convert to fraction form
    1,091,431.92/1,638,171.72 = 671,527.92/x
  3. Step 3: Cross multiply
    1,091,431.92x = 1,638,171.72 × 671,527.92
  4. Step 4: Simplify right side
    1,091,431.92x = 1,100,078,047,734.42
  5. Step 5: Solve for x
    x = 1,100,078,047,734.42/1,091,431.92
  6. Step 6: Final answer
    x = 1,007,921.82

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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.