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Finding the Fourth Proportional to 601,644.48, 830,646.81 and 387,157.29

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Solution

The fourth proportional to 601,644.48, 830,646.81 and 387,157.29 is: 534,519.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,644.48 : 830,646.81 = 387,157.29 : x
  2. Step 2: Convert to fraction form
    601,644.48/830,646.81 = 387,157.29/x
  3. Step 3: Cross multiply
    601,644.48x = 830,646.81 × 387,157.29
  4. Step 4: Simplify right side
    601,644.48x = 321,590,967,906.75
  5. Step 5: Solve for x
    x = 321,590,967,906.75/601,644.48
  6. Step 6: Final answer
    x = 534,519.93

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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.