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Finding the Fourth Proportional to 603,986.80, 906,089.55 and 303,711.70

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Solution

The fourth proportional to 603,986.80, 906,089.55 and 303,711.70 is: 455,622.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,986.80 : 906,089.55 = 303,711.70 : x
  2. Step 2: Convert to fraction form
    603,986.80/906,089.55 = 303,711.70/x
  3. Step 3: Cross multiply
    603,986.80x = 906,089.55 × 303,711.70
  4. Step 4: Simplify right side
    603,986.80x = 275,189,997,582.74
  5. Step 5: Solve for x
    x = 275,189,997,582.74/603,986.80
  6. Step 6: Final answer
    x = 455,622.54

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Similar ratio
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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.