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Finding the Fourth Proportional to 401,520.02, 603,028.86 and 353,505.66

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Solution

The fourth proportional to 401,520.02, 603,028.86 and 353,505.66 is: 530,917.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,520.02 : 603,028.86 = 353,505.66 : x
  2. Step 2: Convert to fraction form
    401,520.02/603,028.86 = 353,505.66/x
  3. Step 3: Cross multiply
    401,520.02x = 603,028.86 × 353,505.66
  4. Step 4: Simplify right side
    401,520.02x = 213,174,115,153.35
  5. Step 5: Solve for x
    x = 213,174,115,153.35/401,520.02
  6. Step 6: Final answer
    x = 530,917.77

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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.