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Finding the Fourth Proportional to 476,568.78, 657,645.22 and 258,768.95

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Solution

The fourth proportional to 476,568.78, 657,645.22 and 258,768.95 is: 357,090.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,568.78 : 657,645.22 = 258,768.95 : x
  2. Step 2: Convert to fraction form
    476,568.78/657,645.22 = 258,768.95/x
  3. Step 3: Cross multiply
    476,568.78x = 657,645.22 × 258,768.95
  4. Step 4: Simplify right side
    476,568.78x = 170,178,158,469.85
  5. Step 5: Solve for x
    x = 170,178,158,469.85/476,568.78
  6. Step 6: Final answer
    x = 357,090.45

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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.