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Finding the Fourth Proportional to 442,908.80, 662,980.80 and 348,905.60

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Solution

The fourth proportional to 442,908.80, 662,980.80 and 348,905.60 is: 522,269.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,908.80 : 662,980.80 = 348,905.60 : x
  2. Step 2: Convert to fraction form
    442,908.80/662,980.80 = 348,905.60/x
  3. Step 3: Cross multiply
    442,908.80x = 662,980.80 × 348,905.60
  4. Step 4: Simplify right side
    442,908.80x = 231,317,713,812.48
  5. Step 5: Solve for x
    x = 231,317,713,812.48/442,908.80
  6. Step 6: Final answer
    x = 522,269.40

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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.