Home / 693,763.03-1,040,823.65-213,980.05

Finding the Fourth Proportional to 693,763.03, 1,040,823.65 and 213,980.05

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Solution

The fourth proportional to 693,763.03, 1,040,823.65 and 213,980.05 is: 321,025.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,763.03 : 1,040,823.65 = 213,980.05 : x
  2. Step 2: Convert to fraction form
    693,763.03/1,040,823.65 = 213,980.05/x
  3. Step 3: Cross multiply
    693,763.03x = 1,040,823.65 × 213,980.05
  4. Step 4: Simplify right side
    693,763.03x = 222,715,496,668.18
  5. Step 5: Solve for x
    x = 222,715,496,668.18/693,763.03
  6. Step 6: Final answer
    x = 321,025.32

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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.