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Finding the Fourth Proportional to 603,966.40, 905,949.60 and 404,900.80

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Solution

The fourth proportional to 603,966.40, 905,949.60 and 404,900.80 is: 607,351.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,966.40 : 905,949.60 = 404,900.80 : x
  2. Step 2: Convert to fraction form
    603,966.40/905,949.60 = 404,900.80/x
  3. Step 3: Cross multiply
    603,966.40x = 905,949.60 × 404,900.80
  4. Step 4: Simplify right side
    603,966.40x = 366,819,717,799.68
  5. Step 5: Solve for x
    x = 366,819,717,799.68/603,966.40
  6. Step 6: Final answer
    x = 607,351.20

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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.