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Finding the Fourth Proportional to 605,624.40, 908,532.60 and 206,302.80

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Solution

The fourth proportional to 605,624.40, 908,532.60 and 206,302.80 is: 309,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,624.40 : 908,532.60 = 206,302.80 : x
  2. Step 2: Convert to fraction form
    605,624.40/908,532.60 = 206,302.80/x
  3. Step 3: Cross multiply
    605,624.40x = 908,532.60 × 206,302.80
  4. Step 4: Simplify right side
    605,624.40x = 187,432,819,271.28
  5. Step 5: Solve for x
    x = 187,432,819,271.28/605,624.40
  6. Step 6: Final answer
    x = 309,486.90

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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.