Home / 1,279,315.73-1,918,331.85-426,087.41

Finding the Fourth Proportional to 1,279,315.73, 1,918,331.85 and 426,087.41

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Solution

The fourth proportional to 1,279,315.73, 1,918,331.85 and 426,087.41 is: 638,917.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,315.73 : 1,918,331.85 = 426,087.41 : x
  2. Step 2: Convert to fraction form
    1,279,315.73/1,918,331.85 = 426,087.41/x
  3. Step 3: Cross multiply
    1,279,315.73x = 1,918,331.85 × 426,087.41
  4. Step 4: Simplify right side
    1,279,315.73x = 817,377,054,683.24
  5. Step 5: Solve for x
    x = 817,377,054,683.24/1,279,315.73
  6. Step 6: Final answer
    x = 638,917.38

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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.