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Finding the Fourth Proportional to 324,015.53, 486,654.03 and 264,088.31

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Solution

The fourth proportional to 324,015.53, 486,654.03 and 264,088.31 is: 396,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,015.53 : 486,654.03 = 264,088.31 : x
  2. Step 2: Convert to fraction form
    324,015.53/486,654.03 = 264,088.31/x
  3. Step 3: Cross multiply
    324,015.53x = 486,654.03 × 264,088.31
  4. Step 4: Simplify right side
    324,015.53x = 128,519,637,904.12
  5. Step 5: Solve for x
    x = 128,519,637,904.12/324,015.53
  6. Step 6: Final answer
    x = 396,646.54

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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.