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Finding the Fourth Proportional to 486,330.21, 669,650.01 and 440,711.39

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Solution

The fourth proportional to 486,330.21, 669,650.01 and 440,711.39 is: 606,835.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,330.21 : 669,650.01 = 440,711.39 : x
  2. Step 2: Convert to fraction form
    486,330.21/669,650.01 = 440,711.39/x
  3. Step 3: Cross multiply
    486,330.21x = 669,650.01 × 440,711.39
  4. Step 4: Simplify right side
    486,330.21x = 295,122,388,232.79
  5. Step 5: Solve for x
    x = 295,122,388,232.79/486,330.21
  6. Step 6: Final answer
    x = 606,835.41

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.