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Finding the Fourth Proportional to 435,253.60, 652,880.40 and 403,760.80

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Solution

The fourth proportional to 435,253.60, 652,880.40 and 403,760.80 is: 605,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,253.60 : 652,880.40 = 403,760.80 : x
  2. Step 2: Convert to fraction form
    435,253.60/652,880.40 = 403,760.80/x
  3. Step 3: Cross multiply
    435,253.60x = 652,880.40 × 403,760.80
  4. Step 4: Simplify right side
    435,253.60x = 263,607,512,608.32
  5. Step 5: Solve for x
    x = 263,607,512,608.32/435,253.60
  6. Step 6: Final answer
    x = 605,641.20

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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.