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Finding the Fourth Proportional to 485,331.66, 669,560.41 and 322,065.16

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Solution

The fourth proportional to 485,331.66, 669,560.41 and 322,065.16 is: 444,319.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,331.66 : 669,560.41 = 322,065.16 : x
  2. Step 2: Convert to fraction form
    485,331.66/669,560.41 = 322,065.16/x
  3. Step 3: Cross multiply
    485,331.66x = 669,560.41 × 322,065.16
  4. Step 4: Simplify right side
    485,331.66x = 215,642,078,097.25
  5. Step 5: Solve for x
    x = 215,642,078,097.25/485,331.66
  6. Step 6: Final answer
    x = 444,319.00

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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.