Home / 327,415.15-451,215.44-286,864.75

Finding the Fourth Proportional to 327,415.15, 451,215.44 and 286,864.75

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Solution

The fourth proportional to 327,415.15, 451,215.44 and 286,864.75 is: 395,332.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,415.15 : 451,215.44 = 286,864.75 : x
  2. Step 2: Convert to fraction form
    327,415.15/451,215.44 = 286,864.75/x
  3. Step 3: Cross multiply
    327,415.15x = 451,215.44 × 286,864.75
  4. Step 4: Simplify right side
    327,415.15x = 129,437,802,957.42
  5. Step 5: Solve for x
    x = 129,437,802,957.42/327,415.15
  6. Step 6: Final answer
    x = 395,332.36

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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.