Home / 715,317.34-1,073,142.07-209,857.90

Finding the Fourth Proportional to 715,317.34, 1,073,142.07 and 209,857.90

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Solution

The fourth proportional to 715,317.34, 1,073,142.07 and 209,857.90 is: 314,835.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,317.34 : 1,073,142.07 = 209,857.90 : x
  2. Step 2: Convert to fraction form
    715,317.34/1,073,142.07 = 209,857.90/x
  3. Step 3: Cross multiply
    715,317.34x = 1,073,142.07 × 209,857.90
  4. Step 4: Simplify right side
    715,317.34x = 225,207,341,211.85
  5. Step 5: Solve for x
    x = 225,207,341,211.85/715,317.34
  6. Step 6: Final answer
    x = 314,835.57

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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.