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Finding the Fourth Proportional to 400,641.74, 601,256.64 and 322,697.06

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Solution

The fourth proportional to 400,641.74, 601,256.64 and 322,697.06 is: 484,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,641.74 : 601,256.64 = 322,697.06 : x
  2. Step 2: Convert to fraction form
    400,641.74/601,256.64 = 322,697.06/x
  3. Step 3: Cross multiply
    400,641.74x = 601,256.64 × 322,697.06
  4. Step 4: Simplify right side
    400,641.74x = 194,023,752,343.36
  5. Step 5: Solve for x
    x = 194,023,752,343.36/400,641.74
  6. Step 6: Final answer
    x = 484,282.42

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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.