Home / 476,768.16-657,951.12-261,921.60

Finding the Fourth Proportional to 476,768.16, 657,951.12 and 261,921.60

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Solution

The fourth proportional to 476,768.16, 657,951.12 and 261,921.60 is: 361,457.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,768.16 : 657,951.12 = 261,921.60 : x
  2. Step 2: Convert to fraction form
    476,768.16/657,951.12 = 261,921.60/x
  3. Step 3: Cross multiply
    476,768.16x = 657,951.12 × 261,921.60
  4. Step 4: Simplify right side
    476,768.16x = 172,331,610,072.19
  5. Step 5: Solve for x
    x = 172,331,610,072.19/476,768.16
  6. Step 6: Final answer
    x = 361,457.88

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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.