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Finding the Fourth Proportional to 706,599.72, 1,059,900.30 and 285,879.24

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Solution

The fourth proportional to 706,599.72, 1,059,900.30 and 285,879.24 is: 428,819.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,599.72 : 1,059,900.30 = 285,879.24 : x
  2. Step 2: Convert to fraction form
    706,599.72/1,059,900.30 = 285,879.24/x
  3. Step 3: Cross multiply
    706,599.72x = 1,059,900.30 × 285,879.24
  4. Step 4: Simplify right side
    706,599.72x = 303,003,492,239.77
  5. Step 5: Solve for x
    x = 303,003,492,239.77/706,599.72
  6. Step 6: Final answer
    x = 428,819.15

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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.