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Finding the Fourth Proportional to 649,668.20, 974,502.30 and 228,986.60

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Solution

The fourth proportional to 649,668.20, 974,502.30 and 228,986.60 is: 343,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,668.20 : 974,502.30 = 228,986.60 : x
  2. Step 2: Convert to fraction form
    649,668.20/974,502.30 = 228,986.60/x
  3. Step 3: Cross multiply
    649,668.20x = 974,502.30 × 228,986.60
  4. Step 4: Simplify right side
    649,668.20x = 223,147,968,369.18
  5. Step 5: Solve for x
    x = 223,147,968,369.18/649,668.20
  6. Step 6: Final answer
    x = 343,479.90

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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.