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Finding the Fourth Proportional to 518,789.75, 716,262.99 and 325,462.46

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Solution

The fourth proportional to 518,789.75, 716,262.99 and 325,462.46 is: 449,347.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,789.75 : 716,262.99 = 325,462.46 : x
  2. Step 2: Convert to fraction form
    518,789.75/716,262.99 = 325,462.46/x
  3. Step 3: Cross multiply
    518,789.75x = 716,262.99 × 325,462.46
  4. Step 4: Simplify right side
    518,789.75x = 233,116,714,732.36
  5. Step 5: Solve for x
    x = 233,116,714,732.36/518,789.75
  6. Step 6: Final answer
    x = 449,347.19

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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.