Home / 476,748.12-657,917.70-280,557.96

Finding the Fourth Proportional to 476,748.12, 657,917.70 and 280,557.96

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Solution

The fourth proportional to 476,748.12, 657,917.70 and 280,557.96 is: 387,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,748.12 : 657,917.70 = 280,557.96 : x
  2. Step 2: Convert to fraction form
    476,748.12/657,917.70 = 280,557.96/x
  3. Step 3: Cross multiply
    476,748.12x = 657,917.70 × 280,557.96
  4. Step 4: Simplify right side
    476,748.12x = 184,584,046,883.55
  5. Step 5: Solve for x
    x = 184,584,046,883.55/476,748.12
  6. Step 6: Final answer
    x = 387,173.10

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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.