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Finding the Fourth Proportional to 656,523.78, 906,009.72 and 370,043.87

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Solution

The fourth proportional to 656,523.78, 906,009.72 and 370,043.87 is: 510,664.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,523.78 : 906,009.72 = 370,043.87 : x
  2. Step 2: Convert to fraction form
    656,523.78/906,009.72 = 370,043.87/x
  3. Step 3: Cross multiply
    656,523.78x = 906,009.72 × 370,043.87
  4. Step 4: Simplify right side
    656,523.78x = 335,263,343,046.42
  5. Step 5: Solve for x
    x = 335,263,343,046.42/656,523.78
  6. Step 6: Final answer
    x = 510,664.43

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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.