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Finding the Fourth Proportional to 442,906.80, 662,977.80 and 348,903.60

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Solution

The fourth proportional to 442,906.80, 662,977.80 and 348,903.60 is: 522,266.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,906.80 : 662,977.80 = 348,903.60 : x
  2. Step 2: Convert to fraction form
    442,906.80/662,977.80 = 348,903.60/x
  3. Step 3: Cross multiply
    442,906.80x = 662,977.80 × 348,903.60
  4. Step 4: Simplify right side
    442,906.80x = 231,315,341,140.08
  5. Step 5: Solve for x
    x = 231,315,341,140.08/442,906.80
  6. Step 6: Final answer
    x = 522,266.40

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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.