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Finding the Fourth Proportional to 500,310.72, 750,470.76 and 126,333.36

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Solution

The fourth proportional to 500,310.72, 750,470.76 and 126,333.36 is: 189,501.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,310.72 : 750,470.76 = 126,333.36 : x
  2. Step 2: Convert to fraction form
    500,310.72/750,470.76 = 126,333.36/x
  3. Step 3: Cross multiply
    500,310.72x = 750,470.76 × 126,333.36
  4. Step 4: Simplify right side
    500,310.72x = 94,809,492,692.55
  5. Step 5: Solve for x
    x = 94,809,492,692.55/500,310.72
  6. Step 6: Final answer
    x = 189,501.22

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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.