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Finding the Fourth Proportional to 555,408.81, 766,492.07 and 325,976.04

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Solution

The fourth proportional to 555,408.81, 766,492.07 and 325,976.04 is: 449,863.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,408.81 : 766,492.07 = 325,976.04 : x
  2. Step 2: Convert to fraction form
    555,408.81/766,492.07 = 325,976.04/x
  3. Step 3: Cross multiply
    555,408.81x = 766,492.07 × 325,976.04
  4. Step 4: Simplify right side
    555,408.81x = 249,858,048,040.12
  5. Step 5: Solve for x
    x = 249,858,048,040.12/555,408.81
  6. Step 6: Final answer
    x = 449,863.31

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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.