Home / 807,128.09-1,210,862.92-267,353.83

Finding the Fourth Proportional to 807,128.09, 1,210,862.92 and 267,353.83

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Solution

The fourth proportional to 807,128.09, 1,210,862.92 and 267,353.83 is: 401,087.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,128.09 : 1,210,862.92 = 267,353.83 : x
  2. Step 2: Convert to fraction form
    807,128.09/1,210,862.92 = 267,353.83/x
  3. Step 3: Cross multiply
    807,128.09x = 1,210,862.92 × 267,353.83
  4. Step 4: Simplify right side
    807,128.09x = 323,728,833,212.67
  5. Step 5: Solve for x
    x = 323,728,833,212.67/807,128.09
  6. Step 6: Final answer
    x = 401,087.31

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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.