Home / 693,478.57-1,040,331.71-213,706.46

Finding the Fourth Proportional to 693,478.57, 1,040,331.71 and 213,706.46

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Solution

The fourth proportional to 693,478.57, 1,040,331.71 and 213,706.46 is: 320,594.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,478.57 : 1,040,331.71 = 213,706.46 : x
  2. Step 2: Convert to fraction form
    693,478.57/1,040,331.71 = 213,706.46/x
  3. Step 3: Cross multiply
    693,478.57x = 1,040,331.71 × 213,706.46
  4. Step 4: Simplify right side
    693,478.57x = 222,325,604,253.08
  5. Step 5: Solve for x
    x = 222,325,604,253.08/693,478.57
  6. Step 6: Final answer
    x = 320,594.77

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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.