Home / 1,324,943.83-1,987,416.42-426,385.50

Finding the Fourth Proportional to 1,324,943.83, 1,987,416.42 and 426,385.50

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Solution

The fourth proportional to 1,324,943.83, 1,987,416.42 and 426,385.50 is: 639,578.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,943.83 : 1,987,416.42 = 426,385.50 : x
  2. Step 2: Convert to fraction form
    1,324,943.83/1,987,416.42 = 426,385.50/x
  3. Step 3: Cross multiply
    1,324,943.83x = 1,987,416.42 × 426,385.50
  4. Step 4: Simplify right side
    1,324,943.83x = 847,405,543,949.91
  5. Step 5: Solve for x
    x = 847,405,543,949.91/1,324,943.83
  6. Step 6: Final answer
    x = 639,578.47

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Double scale
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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.