Home / 1,072,105.58-1,479,553.95-642,376.47

Finding the Fourth Proportional to 1,072,105.58, 1,479,553.95 and 642,376.47

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Solution

The fourth proportional to 1,072,105.58, 1,479,553.95 and 642,376.47 is: 886,508.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,105.58 : 1,479,553.95 = 642,376.47 : x
  2. Step 2: Convert to fraction form
    1,072,105.58/1,479,553.95 = 642,376.47/x
  3. Step 3: Cross multiply
    1,072,105.58x = 1,479,553.95 × 642,376.47
  4. Step 4: Simplify right side
    1,072,105.58x = 950,430,643,575.56
  5. Step 5: Solve for x
    x = 950,430,643,575.56/1,072,105.58
  6. Step 6: Final answer
    x = 886,508.44

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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.