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Finding the Fourth Proportional to 523.13, 783.15 and 458.26

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Solution

The fourth proportional to 523.13, 783.15 and 458.26 is: 686.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.13 : 783.15 = 458.26 : x
  2. Step 2: Convert to fraction form
    523.13/783.15 = 458.26/x
  3. Step 3: Cross multiply
    523.13x = 783.15 × 458.26
  4. Step 4: Simplify right side
    523.13x = 358,885.51
  5. Step 5: Solve for x
    x = 358,885.51/523.13
  6. Step 6: Final answer
    x = 686.04

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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.