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Finding the Fourth Proportional to 551,885.70, 827,828.55 and 458,573.70

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Solution

The fourth proportional to 551,885.70, 827,828.55 and 458,573.70 is: 687,860.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,885.70 : 827,828.55 = 458,573.70 : x
  2. Step 2: Convert to fraction form
    551,885.70/827,828.55 = 458,573.70/x
  3. Step 3: Cross multiply
    551,885.70x = 827,828.55 × 458,573.70
  4. Step 4: Simplify right side
    551,885.70x = 379,620,401,139.14
  5. Step 5: Solve for x
    x = 379,620,401,139.14/551,885.70
  6. Step 6: Final answer
    x = 687,860.55

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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.