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Finding the Fourth Proportional to 612.76, 845.58 and 364.24

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Solution

The fourth proportional to 612.76, 845.58 and 364.24 is: 502.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.76 : 845.58 = 364.24 : x
  2. Step 2: Convert to fraction form
    612.76/845.58 = 364.24/x
  3. Step 3: Cross multiply
    612.76x = 845.58 × 364.24
  4. Step 4: Simplify right side
    612.76x = 307,994.06
  5. Step 5: Solve for x
    x = 307,994.06/612.76
  6. Step 6: Final answer
    x = 502.63

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1.5x scale

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.