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Finding the Fourth Proportional to 652.59, 900.54 and 487.53

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Solution

The fourth proportional to 652.59, 900.54 and 487.53 is: 672.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.59 : 900.54 = 487.53 : x
  2. Step 2: Convert to fraction form
    652.59/900.54 = 487.53/x
  3. Step 3: Cross multiply
    652.59x = 900.54 × 487.53
  4. Step 4: Simplify right side
    652.59x = 439,040.27
  5. Step 5: Solve for x
    x = 439,040.27/652.59
  6. Step 6: Final answer
    x = 672.77

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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.