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Finding the Fourth Proportional to 441,807.80, 662,711.70 and 407,593.40

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Solution

The fourth proportional to 441,807.80, 662,711.70 and 407,593.40 is: 611,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,807.80 : 662,711.70 = 407,593.40 : x
  2. Step 2: Convert to fraction form
    441,807.80/662,711.70 = 407,593.40/x
  3. Step 3: Cross multiply
    441,807.80x = 662,711.70 × 407,593.40
  4. Step 4: Simplify right side
    441,807.80x = 270,116,915,022.78
  5. Step 5: Solve for x
    x = 270,116,915,022.78/441,807.80
  6. Step 6: Final answer
    x = 611,390.10

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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.