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Finding the Fourth Proportional to 923.04, 1,384.86 and 533.50

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Solution

The fourth proportional to 923.04, 1,384.86 and 533.50 is: 800.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    923.04 : 1,384.86 = 533.50 : x
  2. Step 2: Convert to fraction form
    923.04/1,384.86 = 533.50/x
  3. Step 3: Cross multiply
    923.04x = 1,384.86 × 533.50
  4. Step 4: Simplify right side
    923.04x = 738,822.81
  5. Step 5: Solve for x
    x = 738,822.81/923.04
  6. Step 6: Final answer
    x = 800.42

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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.