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Finding the Fourth Proportional to 621,950.10, 933,909.30 and 472,359.30

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Solution

The fourth proportional to 621,950.10, 933,909.30 and 472,359.30 is: 709,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,950.10 : 933,909.30 = 472,359.30 : x
  2. Step 2: Convert to fraction form
    621,950.10/933,909.30 = 472,359.30/x
  3. Step 3: Cross multiply
    621,950.10x = 933,909.30 × 472,359.30
  4. Step 4: Simplify right side
    621,950.10x = 441,140,743,211.49
  5. Step 5: Solve for x
    x = 441,140,743,211.49/621,950.10
  6. Step 6: Final answer
    x = 709,286.39

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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.