Home / 1,320,578.46-1,822,832.37-776,691

Finding the Fourth Proportional to 1,320,578.46, 1,822,832.37 and 776,691

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Solution

The fourth proportional to 1,320,578.46, 1,822,832.37 and 776,691 is: 1,072,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,578.46 : 1,822,832.37 = 776,691 : x
  2. Step 2: Convert to fraction form
    1,320,578.46/1,822,832.37 = 776,691/x
  3. Step 3: Cross multiply
    1,320,578.46x = 1,822,832.37 × 776,691
  4. Step 4: Simplify right side
    1,320,578.46x = 1,415,777,496,287.67
  5. Step 5: Solve for x
    x = 1,415,777,496,287.67/1,320,578.46
  6. Step 6: Final answer
    x = 1,072,088.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.