Home / 874,834.59-1,312,251.91-209,986.59

Finding the Fourth Proportional to 874,834.59, 1,312,251.91 and 209,986.59

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Solution

The fourth proportional to 874,834.59, 1,312,251.91 and 209,986.59 is: 314,979.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,834.59 : 1,312,251.91 = 209,986.59 : x
  2. Step 2: Convert to fraction form
    874,834.59/1,312,251.91 = 209,986.59/x
  3. Step 3: Cross multiply
    874,834.59x = 1,312,251.91 × 209,986.59
  4. Step 4: Simplify right side
    874,834.59x = 275,555,308,197.87
  5. Step 5: Solve for x
    x = 275,555,308,197.87/874,834.59
  6. Step 6: Final answer
    x = 314,979.89

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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.