Home / 589,173.12-813,128.25-331,050.61

Finding the Fourth Proportional to 589,173.12, 813,128.25 and 331,050.61

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Solution

The fourth proportional to 589,173.12, 813,128.25 and 331,050.61 is: 456,888.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,173.12 : 813,128.25 = 331,050.61 : x
  2. Step 2: Convert to fraction form
    589,173.12/813,128.25 = 331,050.61/x
  3. Step 3: Cross multiply
    589,173.12x = 813,128.25 × 331,050.61
  4. Step 4: Simplify right side
    589,173.12x = 269,186,603,170.73
  5. Step 5: Solve for x
    x = 269,186,603,170.73/589,173.12
  6. Step 6: Final answer
    x = 456,888.81

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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.