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Finding the Fourth Proportional to 499,578.40, 749,367.60 and 144,628.30

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Solution

The fourth proportional to 499,578.40, 749,367.60 and 144,628.30 is: 216,942.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,578.40 : 749,367.60 = 144,628.30 : x
  2. Step 2: Convert to fraction form
    499,578.40/749,367.60 = 144,628.30/x
  3. Step 3: Cross multiply
    499,578.40x = 749,367.60 × 144,628.30
  4. Step 4: Simplify right side
    499,578.40x = 108,379,762,063.08
  5. Step 5: Solve for x
    x = 108,379,762,063.08/499,578.40
  6. Step 6: Final answer
    x = 216,942.45

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Similar ratio
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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.