Home / 553,380.12-828,473.67-324,983.61

Finding the Fourth Proportional to 553,380.12, 828,473.67 and 324,983.61

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Solution

The fourth proportional to 553,380.12, 828,473.67 and 324,983.61 is: 486,537.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,380.12 : 828,473.67 = 324,983.61 : x
  2. Step 2: Convert to fraction form
    553,380.12/828,473.67 = 324,983.61/x
  3. Step 3: Cross multiply
    553,380.12x = 828,473.67 × 324,983.61
  4. Step 4: Simplify right side
    553,380.12x = 269,240,364,066.55
  5. Step 5: Solve for x
    x = 269,240,364,066.55/553,380.12
  6. Step 6: Final answer
    x = 486,537.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.