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Finding the Fourth Proportional to 555,568.47, 766,644.75 and 326,135.16

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Solution

The fourth proportional to 555,568.47, 766,644.75 and 326,135.16 is: 450,043.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,568.47 : 766,644.75 = 326,135.16 : x
  2. Step 2: Convert to fraction form
    555,568.47/766,644.75 = 326,135.16/x
  3. Step 3: Cross multiply
    555,568.47x = 766,644.75 × 326,135.16
  4. Step 4: Simplify right side
    555,568.47x = 250,029,808,204.41
  5. Step 5: Solve for x
    x = 250,029,808,204.41/555,568.47
  6. Step 6: Final answer
    x = 450,043.19

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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.