Home / 521,923.41-720,242.55-304,118.61

Finding the Fourth Proportional to 521,923.41, 720,242.55 and 304,118.61

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Solution

The fourth proportional to 521,923.41, 720,242.55 and 304,118.61 is: 419,676.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,923.41 : 720,242.55 = 304,118.61 : x
  2. Step 2: Convert to fraction form
    521,923.41/720,242.55 = 304,118.61/x
  3. Step 3: Cross multiply
    521,923.41x = 720,242.55 × 304,118.61
  4. Step 4: Simplify right side
    521,923.41x = 219,039,163,168.86
  5. Step 5: Solve for x
    x = 219,039,163,168.86/521,923.41
  6. Step 6: Final answer
    x = 419,676.83

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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.