Home / 669,752.70-1,002,879.45-638,259.90

Finding the Fourth Proportional to 669,752.70, 1,002,879.45 and 638,259.90

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Solution

The fourth proportional to 669,752.70, 1,002,879.45 and 638,259.90 is: 955,722.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,752.70 : 1,002,879.45 = 638,259.90 : x
  2. Step 2: Convert to fraction form
    669,752.70/1,002,879.45 = 638,259.90/x
  3. Step 3: Cross multiply
    669,752.70x = 1,002,879.45 × 638,259.90
  4. Step 4: Simplify right side
    669,752.70x = 640,097,737,469.06
  5. Step 5: Solve for x
    x = 640,097,737,469.06/669,752.70
  6. Step 6: Final answer
    x = 955,722.52

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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.