Home / 709,420.56-1,063,206.72-288,204

Finding the Fourth Proportional to 709,420.56, 1,063,206.72 and 288,204

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Solution

The fourth proportional to 709,420.56, 1,063,206.72 and 288,204 is: 431,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,420.56 : 1,063,206.72 = 288,204 : x
  2. Step 2: Convert to fraction form
    709,420.56/1,063,206.72 = 288,204/x
  3. Step 3: Cross multiply
    709,420.56x = 1,063,206.72 × 288,204
  4. Step 4: Simplify right side
    709,420.56x = 306,420,429,530.88
  5. Step 5: Solve for x
    x = 306,420,429,530.88/709,420.56
  6. Step 6: Final answer
    x = 431,930.57

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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.