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Finding the Fourth Proportional to 626,022, 863,910.36 and 357,750

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Solution

The fourth proportional to 626,022, 863,910.36 and 357,750 is: 493,695

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,022 : 863,910.36 = 357,750 : x
  2. Step 2: Convert to fraction form
    626,022/863,910.36 = 357,750/x
  3. Step 3: Cross multiply
    626,022x = 863,910.36 × 357,750
  4. Step 4: Simplify right side
    626,022x = 309,063,931,290
  5. Step 5: Solve for x
    x = 309,063,931,290/626,022
  6. Step 6: Final answer
    x = 493,695

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.