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Finding the Fourth Proportional to 957.23, 1,434.52 and 435.96

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Solution

The fourth proportional to 957.23, 1,434.52 and 435.96 is: 653.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.23 : 1,434.52 = 435.96 : x
  2. Step 2: Convert to fraction form
    957.23/1,434.52 = 435.96/x
  3. Step 3: Cross multiply
    957.23x = 1,434.52 × 435.96
  4. Step 4: Simplify right side
    957.23x = 625,392.25
  5. Step 5: Solve for x
    x = 625,392.25/957.23
  6. Step 6: Final answer
    x = 653.33

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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.