Home / 791,215.81-1,187,010.42-258,734.77

Finding the Fourth Proportional to 791,215.81, 1,187,010.42 and 258,734.77

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Solution

The fourth proportional to 791,215.81, 1,187,010.42 and 258,734.77 is: 388,163.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,215.81 : 1,187,010.42 = 258,734.77 : x
  2. Step 2: Convert to fraction form
    791,215.81/1,187,010.42 = 258,734.77/x
  3. Step 3: Cross multiply
    791,215.81x = 1,187,010.42 × 258,734.77
  4. Step 4: Simplify right side
    791,215.81x = 307,120,868,006.30
  5. Step 5: Solve for x
    x = 307,120,868,006.30/791,215.81
  6. Step 6: Final answer
    x = 388,163.21

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1.5x scale

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.