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Finding the Fourth Proportional to 559,074.09, 838,525.19 and 306,479.73

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Solution

The fourth proportional to 559,074.09, 838,525.19 and 306,479.73 is: 459,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,074.09 : 838,525.19 = 306,479.73 : x
  2. Step 2: Convert to fraction form
    559,074.09/838,525.19 = 306,479.73/x
  3. Step 3: Cross multiply
    559,074.09x = 838,525.19 × 306,479.73
  4. Step 4: Simplify right side
    559,074.09x = 256,990,972,297.00
  5. Step 5: Solve for x
    x = 256,990,972,297.00/559,074.09
  6. Step 6: Final answer
    x = 459,672.48

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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.