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Finding the Fourth Proportional to 476,660.96, 657,800.04 and 261,820.88

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Solution

The fourth proportional to 476,660.96, 657,800.04 and 261,820.88 is: 361,317.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,660.96 : 657,800.04 = 261,820.88 : x
  2. Step 2: Convert to fraction form
    476,660.96/657,800.04 = 261,820.88/x
  3. Step 3: Cross multiply
    476,660.96x = 657,800.04 × 261,820.88
  4. Step 4: Simplify right side
    476,660.96x = 172,225,785,336.84
  5. Step 5: Solve for x
    x = 172,225,785,336.84/476,660.96
  6. Step 6: Final answer
    x = 361,317.16

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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.