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Finding the Fourth Proportional to 945.03, 1,417.83 and 534.45

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Solution

The fourth proportional to 945.03, 1,417.83 and 534.45 is: 801.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    945.03 : 1,417.83 = 534.45 : x
  2. Step 2: Convert to fraction form
    945.03/1,417.83 = 534.45/x
  3. Step 3: Cross multiply
    945.03x = 1,417.83 × 534.45
  4. Step 4: Simplify right side
    945.03x = 757,759.24
  5. Step 5: Solve for x
    x = 757,759.24/945.03
  6. Step 6: Final answer
    x = 801.84

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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.