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Finding the Fourth Proportional to 882.40, 1,323.42 and 362.28

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Solution

The fourth proportional to 882.40, 1,323.42 and 362.28 is: 543.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    882.40 : 1,323.42 = 362.28 : x
  2. Step 2: Convert to fraction form
    882.40/1,323.42 = 362.28/x
  3. Step 3: Cross multiply
    882.40x = 1,323.42 × 362.28
  4. Step 4: Simplify right side
    882.40x = 479,448.60
  5. Step 5: Solve for x
    x = 479,448.60/882.40
  6. Step 6: Final answer
    x = 543.35

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1.5x scale

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.