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Finding the Fourth Proportional to 441,774.80, 662,662.20 and 407,560.40

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Solution

The fourth proportional to 441,774.80, 662,662.20 and 407,560.40 is: 611,340.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,774.80 : 662,662.20 = 407,560.40 : x
  2. Step 2: Convert to fraction form
    441,774.80/662,662.20 = 407,560.40/x
  3. Step 3: Cross multiply
    441,774.80x = 662,662.20 × 407,560.40
  4. Step 4: Simplify right side
    441,774.80x = 270,074,871,296.88
  5. Step 5: Solve for x
    x = 270,074,871,296.88/441,774.80
  6. Step 6: Final answer
    x = 611,340.60

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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.