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Finding the Fourth Proportional to 1,065.04, 1,469.88 and 599.20

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Solution

The fourth proportional to 1,065.04, 1,469.88 and 599.20 is: 826.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065.04 : 1,469.88 = 599.20 : x
  2. Step 2: Convert to fraction form
    1,065.04/1,469.88 = 599.20/x
  3. Step 3: Cross multiply
    1,065.04x = 1,469.88 × 599.20
  4. Step 4: Simplify right side
    1,065.04x = 880,752.10
  5. Step 5: Solve for x
    x = 880,752.10/1,065.04
  6. Step 6: Final answer
    x = 826.97

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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.