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Finding the Fourth Proportional to 555,845.66, 766,982.18 and 314,040

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Solution

The fourth proportional to 555,845.66, 766,982.18 and 314,040 is: 433,327.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,845.66 : 766,982.18 = 314,040 : x
  2. Step 2: Convert to fraction form
    555,845.66/766,982.18 = 314,040/x
  3. Step 3: Cross multiply
    555,845.66x = 766,982.18 × 314,040
  4. Step 4: Simplify right side
    555,845.66x = 240,863,082,237
  5. Step 5: Solve for x
    x = 240,863,082,237/555,845.66
  6. Step 6: Final answer
    x = 433,327.27

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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.