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Finding the Fourth Proportional to 656,463.68, 905,893.63 and 370,043.22

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Solution

The fourth proportional to 656,463.68, 905,893.63 and 370,043.22 is: 510,644.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,463.68 : 905,893.63 = 370,043.22 : x
  2. Step 2: Convert to fraction form
    656,463.68/905,893.63 = 370,043.22/x
  3. Step 3: Cross multiply
    656,463.68x = 905,893.63 × 370,043.22
  4. Step 4: Simplify right side
    656,463.68x = 335,219,794,897.58
  5. Step 5: Solve for x
    x = 335,219,794,897.58/656,463.68
  6. Step 6: Final answer
    x = 510,644.85

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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.