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Finding the Fourth Proportional to 618.59, 853.25 and 432.01

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Solution

The fourth proportional to 618.59, 853.25 and 432.01 is: 595.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.59 : 853.25 = 432.01 : x
  2. Step 2: Convert to fraction form
    618.59/853.25 = 432.01/x
  3. Step 3: Cross multiply
    618.59x = 853.25 × 432.01
  4. Step 4: Simplify right side
    618.59x = 368,609.35
  5. Step 5: Solve for x
    x = 368,609.35/618.59
  6. Step 6: Final answer
    x = 595.89

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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.