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Finding the Fourth Proportional to 652.37, 900.65 and 431.51

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Solution

The fourth proportional to 652.37, 900.65 and 431.51 is: 595.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.37 : 900.65 = 431.51 : x
  2. Step 2: Convert to fraction form
    652.37/900.65 = 431.51/x
  3. Step 3: Cross multiply
    652.37x = 900.65 × 431.51
  4. Step 4: Simplify right side
    652.37x = 388,636.06
  5. Step 5: Solve for x
    x = 388,636.06/652.37
  6. Step 6: Final answer
    x = 595.73

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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.