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Finding the Fourth Proportional to 892.32, 1,230.60 and 703.36

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Solution

The fourth proportional to 892.32, 1,230.60 and 703.36 is: 970.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    892.32 : 1,230.60 = 703.36 : x
  2. Step 2: Convert to fraction form
    892.32/1,230.60 = 703.36/x
  3. Step 3: Cross multiply
    892.32x = 1,230.60 × 703.36
  4. Step 4: Simplify right side
    892.32x = 865,554.82
  5. Step 5: Solve for x
    x = 865,554.82/892.32
  6. Step 6: Final answer
    x = 970.00

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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.