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Finding the Fourth Proportional to 612.22, 845.32 and 502.06

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Solution

The fourth proportional to 612.22, 845.32 and 502.06 is: 693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.22 : 845.32 = 502.06 : x
  2. Step 2: Convert to fraction form
    612.22/845.32 = 502.06/x
  3. Step 3: Cross multiply
    612.22x = 845.32 × 502.06
  4. Step 4: Simplify right side
    612.22x = 424,401.36
  5. Step 5: Solve for x
    x = 424,401.36/612.22
  6. Step 6: Final answer
    x = 693.22

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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.