Home / 1,072,098.82-1,479,544.63-642,369.72

Finding the Fourth Proportional to 1,072,098.82, 1,479,544.63 and 642,369.72

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Solution

The fourth proportional to 1,072,098.82, 1,479,544.63 and 642,369.72 is: 886,499.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,098.82 : 1,479,544.63 = 642,369.72 : x
  2. Step 2: Convert to fraction form
    1,072,098.82/1,479,544.63 = 642,369.72/x
  3. Step 3: Cross multiply
    1,072,098.82x = 1,479,544.63 × 642,369.72
  4. Step 4: Simplify right side
    1,072,098.82x = 950,414,677,256.30
  5. Step 5: Solve for x
    x = 950,414,677,256.30/1,072,098.82
  6. Step 6: Final answer
    x = 886,499.13

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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.