Home / 1,309,434.09-1,964,234.16-410,911.28

Finding the Fourth Proportional to 1,309,434.09, 1,964,234.16 and 410,911.28

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Solution

The fourth proportional to 1,309,434.09, 1,964,234.16 and 410,911.28 is: 616,392.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,434.09 : 1,964,234.16 = 410,911.28 : x
  2. Step 2: Convert to fraction form
    1,309,434.09/1,964,234.16 = 410,911.28/x
  3. Step 3: Cross multiply
    1,309,434.09x = 1,964,234.16 × 410,911.28
  4. Step 4: Simplify right side
    1,309,434.09x = 807,125,972,905.33
  5. Step 5: Solve for x
    x = 807,125,972,905.33/1,309,434.09
  6. Step 6: Final answer
    x = 616,392.97

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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.