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Finding the Fourth Proportional to 1,041.04, 1,559.94 and 867.70

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Solution

The fourth proportional to 1,041.04, 1,559.94 and 867.70 is: 1,300.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.04 : 1,559.94 = 867.70 : x
  2. Step 2: Convert to fraction form
    1,041.04/1,559.94 = 867.70/x
  3. Step 3: Cross multiply
    1,041.04x = 1,559.94 × 867.70
  4. Step 4: Simplify right side
    1,041.04x = 1,353,559.94
  5. Step 5: Solve for x
    x = 1,353,559.94/1,041.04
  6. Step 6: Final answer
    x = 1,300.20

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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.