Home / 1,072,099.73-1,479,545.89-642,370.63

Finding the Fourth Proportional to 1,072,099.73, 1,479,545.89 and 642,370.63

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Solution

The fourth proportional to 1,072,099.73, 1,479,545.89 and 642,370.63 is: 886,500.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,099.73 : 1,479,545.89 = 642,370.63 : x
  2. Step 2: Convert to fraction form
    1,072,099.73/1,479,545.89 = 642,370.63/x
  3. Step 3: Cross multiply
    1,072,099.73x = 1,479,545.89 × 642,370.63
  4. Step 4: Simplify right side
    1,072,099.73x = 950,416,825,473.21
  5. Step 5: Solve for x
    x = 950,416,825,473.21/1,072,099.73
  6. Step 6: Final answer
    x = 886,500.39

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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.