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Finding the Fourth Proportional to 603,267.20, 904,900.80 and 445,803.20

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Solution

The fourth proportional to 603,267.20, 904,900.80 and 445,803.20 is: 668,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,267.20 : 904,900.80 = 445,803.20 : x
  2. Step 2: Convert to fraction form
    603,267.20/904,900.80 = 445,803.20/x
  3. Step 3: Cross multiply
    603,267.20x = 904,900.80 × 445,803.20
  4. Step 4: Simplify right side
    603,267.20x = 403,407,672,322.56
  5. Step 5: Solve for x
    x = 403,407,672,322.56/603,267.20
  6. Step 6: Final answer
    x = 668,704.80

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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.