Home / 816,733.81-1,126,633.03-489,959.88

Finding the Fourth Proportional to 816,733.81, 1,126,633.03 and 489,959.88

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Solution

The fourth proportional to 816,733.81, 1,126,633.03 and 489,959.88 is: 675,868.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,733.81 : 1,126,633.03 = 489,959.88 : x
  2. Step 2: Convert to fraction form
    816,733.81/1,126,633.03 = 489,959.88/x
  3. Step 3: Cross multiply
    816,733.81x = 1,126,633.03 × 489,959.88
  4. Step 4: Simplify right side
    816,733.81x = 552,004,984,182.84
  5. Step 5: Solve for x
    x = 552,004,984,182.84/816,733.81
  6. Step 6: Final answer
    x = 675,868.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.