Home / 818,624.93-1,121,520.24-787,943.70

Finding the Fourth Proportional to 818,624.93, 1,121,520.24 and 787,943.70

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Solution

The fourth proportional to 818,624.93, 1,121,520.24 and 787,943.70 is: 1,079,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,624.93 : 1,121,520.24 = 787,943.70 : x
  2. Step 2: Convert to fraction form
    818,624.93/1,121,520.24 = 787,943.70/x
  3. Step 3: Cross multiply
    818,624.93x = 1,121,520.24 × 787,943.70
  4. Step 4: Simplify right side
    818,624.93x = 883,694,807,530.49
  5. Step 5: Solve for x
    x = 883,694,807,530.49/818,624.93
  6. Step 6: Final answer
    x = 1,079,486.81

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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.