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Finding the Fourth Proportional to 955.59, 1,435.20 and 591.09

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Solution

The fourth proportional to 955.59, 1,435.20 and 591.09 is: 887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.59 : 1,435.20 = 591.09 : x
  2. Step 2: Convert to fraction form
    955.59/1,435.20 = 591.09/x
  3. Step 3: Cross multiply
    955.59x = 1,435.20 × 591.09
  4. Step 4: Simplify right side
    955.59x = 848,332.37
  5. Step 5: Solve for x
    x = 848,332.37/955.59
  6. Step 6: Final answer
    x = 887.76

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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.