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Finding the Fourth Proportional to 612.26, 923.18 and 561.23

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Solution

The fourth proportional to 612.26, 923.18 and 561.23 is: 846.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.26 : 923.18 = 561.23 : x
  2. Step 2: Convert to fraction form
    612.26/923.18 = 561.23/x
  3. Step 3: Cross multiply
    612.26x = 923.18 × 561.23
  4. Step 4: Simplify right side
    612.26x = 518,116.31
  5. Step 5: Solve for x
    x = 518,116.31/612.26
  6. Step 6: Final answer
    x = 846.24

Related Problems

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.