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Finding the Fourth Proportional to 706,096.80, 1,059,404.40 and 285,415.20

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Solution

The fourth proportional to 706,096.80, 1,059,404.40 and 285,415.20 is: 428,227.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,096.80 : 1,059,404.40 = 285,415.20 : x
  2. Step 2: Convert to fraction form
    706,096.80/1,059,404.40 = 285,415.20/x
  3. Step 3: Cross multiply
    706,096.80x = 1,059,404.40 × 285,415.20
  4. Step 4: Simplify right side
    706,096.80x = 302,370,118,706.88
  5. Step 5: Solve for x
    x = 302,370,118,706.88/706,096.80
  6. Step 6: Final answer
    x = 428,227.57

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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.