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Finding the Fourth Proportional to 603,289.70, 904,934.55 and 445,825.70

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Solution

The fourth proportional to 603,289.70, 904,934.55 and 445,825.70 is: 668,738.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,289.70 : 904,934.55 = 445,825.70 : x
  2. Step 2: Convert to fraction form
    603,289.70/904,934.55 = 445,825.70/x
  3. Step 3: Cross multiply
    603,289.70x = 904,934.55 × 445,825.70
  4. Step 4: Simplify right side
    603,289.70x = 403,443,079,207.94
  5. Step 5: Solve for x
    x = 403,443,079,207.94/603,289.70
  6. Step 6: Final answer
    x = 668,738.55

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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.