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Finding the Fourth Proportional to 551,446.70, 827,170.05 and 528,118.70

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Solution

The fourth proportional to 551,446.70, 827,170.05 and 528,118.70 is: 792,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,446.70 : 827,170.05 = 528,118.70 : x
  2. Step 2: Convert to fraction form
    551,446.70/827,170.05 = 528,118.70/x
  3. Step 3: Cross multiply
    551,446.70x = 827,170.05 × 528,118.70
  4. Step 4: Simplify right side
    551,446.70x = 436,843,971,484.94
  5. Step 5: Solve for x
    x = 436,843,971,484.94/551,446.70
  6. Step 6: Final answer
    x = 792,178.05

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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.