Home / 874,834.97-1,312,252.47-209,986.97

Finding the Fourth Proportional to 874,834.97, 1,312,252.47 and 209,986.97

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Solution

The fourth proportional to 874,834.97, 1,312,252.47 and 209,986.97 is: 314,980.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,834.97 : 1,312,252.47 = 209,986.97 : x
  2. Step 2: Convert to fraction form
    874,834.97/1,312,252.47 = 209,986.97/x
  3. Step 3: Cross multiply
    874,834.97x = 1,312,252.47 × 209,986.97
  4. Step 4: Simplify right side
    874,834.97x = 275,555,923,330.95
  5. Step 5: Solve for x
    x = 275,555,923,330.95/874,834.97
  6. Step 6: Final answer
    x = 314,980.46

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Double scale
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Similar ratio
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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.