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Finding the Fourth Proportional to 476,676.90, 657,812.61 and 261,830.34

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Solution

The fourth proportional to 476,676.90, 657,812.61 and 261,830.34 is: 361,325.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,676.90 : 657,812.61 = 261,830.34 : x
  2. Step 2: Convert to fraction form
    476,676.90/657,812.61 = 261,830.34/x
  3. Step 3: Cross multiply
    476,676.90x = 657,812.61 × 261,830.34
  4. Step 4: Simplify right side
    476,676.90x = 172,235,299,332.59
  5. Step 5: Solve for x
    x = 172,235,299,332.59/476,676.90
  6. Step 6: Final answer
    x = 361,325.04

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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.