Home / 788,238.46-1,079,890.67-758,718.28

Finding the Fourth Proportional to 788,238.46, 1,079,890.67 and 758,718.28

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Solution

The fourth proportional to 788,238.46, 1,079,890.67 and 758,718.28 is: 1,039,447.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,238.46 : 1,079,890.67 = 758,718.28 : x
  2. Step 2: Convert to fraction form
    788,238.46/1,079,890.67 = 758,718.28/x
  3. Step 3: Cross multiply
    788,238.46x = 1,079,890.67 × 758,718.28
  4. Step 4: Simplify right side
    788,238.46x = 819,332,791,730.45
  5. Step 5: Solve for x
    x = 819,332,791,730.45/788,238.46
  6. Step 6: Final answer
    x = 1,039,447.87

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.