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Finding the Fourth Proportional to 485,440.02, 669,910.32 and 270,593.64

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Solution

The fourth proportional to 485,440.02, 669,910.32 and 270,593.64 is: 373,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,440.02 : 669,910.32 = 270,593.64 : x
  2. Step 2: Convert to fraction form
    485,440.02/669,910.32 = 270,593.64/x
  3. Step 3: Cross multiply
    485,440.02x = 669,910.32 × 270,593.64
  4. Step 4: Simplify right side
    485,440.02x = 181,273,471,962.37
  5. Step 5: Solve for x
    x = 181,273,471,962.37/485,440.02
  6. Step 6: Final answer
    x = 373,420.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.