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Finding the Fourth Proportional to 609,668.28, 910,794.13 and 394,684.76

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Solution

The fourth proportional to 609,668.28, 910,794.13 and 394,684.76 is: 589,626.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,668.28 : 910,794.13 = 394,684.76 : x
  2. Step 2: Convert to fraction form
    609,668.28/910,794.13 = 394,684.76/x
  3. Step 3: Cross multiply
    609,668.28x = 910,794.13 × 394,684.76
  4. Step 4: Simplify right side
    609,668.28x = 359,476,562,608.46
  5. Step 5: Solve for x
    x = 359,476,562,608.46/609,668.28
  6. Step 6: Final answer
    x = 589,626.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.