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Finding the Fourth Proportional to 435,759.60, 653,639.40 and 404,266.80

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Solution

The fourth proportional to 435,759.60, 653,639.40 and 404,266.80 is: 606,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,759.60 : 653,639.40 = 404,266.80 : x
  2. Step 2: Convert to fraction form
    435,759.60/653,639.40 = 404,266.80/x
  3. Step 3: Cross multiply
    435,759.60x = 653,639.40 × 404,266.80
  4. Step 4: Simplify right side
    435,759.60x = 264,244,708,591.92
  5. Step 5: Solve for x
    x = 264,244,708,591.92/435,759.60
  6. Step 6: Final answer
    x = 606,400.20

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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.