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Finding the Fourth Proportional to 827.06, 1,141.56 and 473.17

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Solution

The fourth proportional to 827.06, 1,141.56 and 473.17 is: 653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    827.06 : 1,141.56 = 473.17 : x
  2. Step 2: Convert to fraction form
    827.06/1,141.56 = 473.17/x
  3. Step 3: Cross multiply
    827.06x = 1,141.56 × 473.17
  4. Step 4: Simplify right side
    827.06x = 540,151.95
  5. Step 5: Solve for x
    x = 540,151.95/827.06
  6. Step 6: Final answer
    x = 653.10

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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.