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Finding the Fourth Proportional to 1,036.67, 1,555.61 and 574.83

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Solution

The fourth proportional to 1,036.67, 1,555.61 and 574.83 is: 862.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.67 : 1,555.61 = 574.83 : x
  2. Step 2: Convert to fraction form
    1,036.67/1,555.61 = 574.83/x
  3. Step 3: Cross multiply
    1,036.67x = 1,555.61 × 574.83
  4. Step 4: Simplify right side
    1,036.67x = 894,208.42
  5. Step 5: Solve for x
    x = 894,208.42/1,036.67
  6. Step 6: Final answer
    x = 862.58

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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.