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Finding the Fourth Proportional to 631.32, 942.48 and 562.68

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Solution

The fourth proportional to 631.32, 942.48 and 562.68 is: 840.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.32 : 942.48 = 562.68 : x
  2. Step 2: Convert to fraction form
    631.32/942.48 = 562.68/x
  3. Step 3: Cross multiply
    631.32x = 942.48 × 562.68
  4. Step 4: Simplify right side
    631.32x = 530,314.65
  5. Step 5: Solve for x
    x = 530,314.65/631.32
  6. Step 6: Final answer
    x = 840.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.