Home / 874,834.85-1,312,252.28-209,986.85

Finding the Fourth Proportional to 874,834.85, 1,312,252.28 and 209,986.85

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Solution

The fourth proportional to 874,834.85, 1,312,252.28 and 209,986.85 is: 314,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,834.85 : 1,312,252.28 = 209,986.85 : x
  2. Step 2: Convert to fraction form
    874,834.85/1,312,252.28 = 209,986.85/x
  3. Step 3: Cross multiply
    874,834.85x = 1,312,252.28 × 209,986.85
  4. Step 4: Simplify right side
    874,834.85x = 275,555,716,646.22
  5. Step 5: Solve for x
    x = 275,555,716,646.22/874,834.85
  6. Step 6: Final answer
    x = 314,980.27

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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.