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Finding the Fourth Proportional to 652.79, 900.73 and 431.62

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Solution

The fourth proportional to 652.79, 900.73 and 431.62 is: 595.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.79 : 900.73 = 431.62 : x
  2. Step 2: Convert to fraction form
    652.79/900.73 = 431.62/x
  3. Step 3: Cross multiply
    652.79x = 900.73 × 431.62
  4. Step 4: Simplify right side
    652.79x = 388,769.75
  5. Step 5: Solve for x
    x = 388,769.75/652.79
  6. Step 6: Final answer
    x = 595.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.