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Finding the Fourth Proportional to 898.24, 1,235.10 and 767.02

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Solution

The fourth proportional to 898.24, 1,235.10 and 767.02 is: 1,054.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    898.24 : 1,235.10 = 767.02 : x
  2. Step 2: Convert to fraction form
    898.24/1,235.10 = 767.02/x
  3. Step 3: Cross multiply
    898.24x = 1,235.10 × 767.02
  4. Step 4: Simplify right side
    898.24x = 947,346.40
  5. Step 5: Solve for x
    x = 947,346.40/898.24
  6. Step 6: Final answer
    x = 1,054.67

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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.