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Finding the Fourth Proportional to 408,069.40, 612,104.10 and 366,735.10

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Solution

The fourth proportional to 408,069.40, 612,104.10 and 366,735.10 is: 550,102.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,069.40 : 612,104.10 = 366,735.10 : x
  2. Step 2: Convert to fraction form
    408,069.40/612,104.10 = 366,735.10/x
  3. Step 3: Cross multiply
    408,069.40x = 612,104.10 × 366,735.10
  4. Step 4: Simplify right side
    408,069.40x = 224,480,058,323.91
  5. Step 5: Solve for x
    x = 224,480,058,323.91/408,069.40
  6. Step 6: Final answer
    x = 550,102.65

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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.