Home / 476,278.12-657,272.30-261,438.17

Finding the Fourth Proportional to 476,278.12, 657,272.30 and 261,438.17

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Solution

The fourth proportional to 476,278.12, 657,272.30 and 261,438.17 is: 360,789.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,278.12 : 657,272.30 = 261,438.17 : x
  2. Step 2: Convert to fraction form
    476,278.12/657,272.30 = 261,438.17/x
  3. Step 3: Cross multiply
    476,278.12x = 657,272.30 × 261,438.17
  4. Step 4: Simplify right side
    476,278.12x = 171,836,067,639.68
  5. Step 5: Solve for x
    x = 171,836,067,639.68/476,278.12
  6. Step 6: Final answer
    x = 360,789.34

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1.5x scale

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.