Home / 669,770.70-1,002,906.45-638,277.90

Finding the Fourth Proportional to 669,770.70, 1,002,906.45 and 638,277.90

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Solution

The fourth proportional to 669,770.70, 1,002,906.45 and 638,277.90 is: 955,749.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,770.70 : 1,002,906.45 = 638,277.90 : x
  2. Step 2: Convert to fraction form
    669,770.70/1,002,906.45 = 638,277.90/x
  3. Step 3: Cross multiply
    669,770.70x = 1,002,906.45 × 638,277.90
  4. Step 4: Simplify right side
    669,770.70x = 640,133,022,802.46
  5. Step 5: Solve for x
    x = 640,133,022,802.46/669,770.70
  6. Step 6: Final answer
    x = 955,749.52

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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.