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Finding the Fourth Proportional to 602.53, 904.47 and 405.01

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Solution

The fourth proportional to 602.53, 904.47 and 405.01 is: 607.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.53 : 904.47 = 405.01 : x
  2. Step 2: Convert to fraction form
    602.53/904.47 = 405.01/x
  3. Step 3: Cross multiply
    602.53x = 904.47 × 405.01
  4. Step 4: Simplify right side
    602.53x = 366,319.39
  5. Step 5: Solve for x
    x = 366,319.39/602.53
  6. Step 6: Final answer
    x = 607.97

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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.