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Finding the Fourth Proportional to 656,412.72, 905,897.34 and 366,043.92

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Solution

The fourth proportional to 656,412.72, 905,897.34 and 366,043.92 is: 505,167.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,412.72 : 905,897.34 = 366,043.92 : x
  2. Step 2: Convert to fraction form
    656,412.72/905,897.34 = 366,043.92/x
  3. Step 3: Cross multiply
    656,412.72x = 905,897.34 × 366,043.92
  4. Step 4: Simplify right side
    656,412.72x = 331,598,213,451.17
  5. Step 5: Solve for x
    x = 331,598,213,451.17/656,412.72
  6. Step 6: Final answer
    x = 505,167.26

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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.