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Finding the Fourth Proportional to 649,636.44, 974,622.78 and 200,347.38

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Solution

The fourth proportional to 649,636.44, 974,622.78 and 200,347.38 is: 300,572.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,636.44 : 974,622.78 = 200,347.38 : x
  2. Step 2: Convert to fraction form
    649,636.44/974,622.78 = 200,347.38/x
  3. Step 3: Cross multiply
    649,636.44x = 974,622.78 × 200,347.38
  4. Step 4: Simplify right side
    649,636.44x = 195,263,120,461.32
  5. Step 5: Solve for x
    x = 195,263,120,461.32/649,636.44
  6. Step 6: Final answer
    x = 300,572.92

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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.