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Finding the Fourth Proportional to 388,829.60, 583,244.40 and 262,858.40

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Solution

The fourth proportional to 388,829.60, 583,244.40 and 262,858.40 is: 394,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,829.60 : 583,244.40 = 262,858.40 : x
  2. Step 2: Convert to fraction form
    388,829.60/583,244.40 = 262,858.40/x
  3. Step 3: Cross multiply
    388,829.60x = 583,244.40 × 262,858.40
  4. Step 4: Simplify right side
    388,829.60x = 153,310,689,792.96
  5. Step 5: Solve for x
    x = 153,310,689,792.96/388,829.60
  6. Step 6: Final answer
    x = 394,287.60

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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.