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Finding the Fourth Proportional to 446,728.20, 624,019.80 and 446,728.20

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Solution

The fourth proportional to 446,728.20, 624,019.80 and 446,728.20 is: 624,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,728.20 : 624,019.80 = 446,728.20 : x
  2. Step 2: Convert to fraction form
    446,728.20/624,019.80 = 446,728.20/x
  3. Step 3: Cross multiply
    446,728.20x = 624,019.80 × 446,728.20
  4. Step 4: Simplify right side
    446,728.20x = 278,767,242,018.36
  5. Step 5: Solve for x
    x = 278,767,242,018.36/446,728.20
  6. Step 6: Final answer
    x = 624,019.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.