Home / 1,427,005.05-1,969,252.26-782,424.16

Finding the Fourth Proportional to 1,427,005.05, 1,969,252.26 and 782,424.16

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Solution

The fourth proportional to 1,427,005.05, 1,969,252.26 and 782,424.16 is: 1,079,737.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,005.05 : 1,969,252.26 = 782,424.16 : x
  2. Step 2: Convert to fraction form
    1,427,005.05/1,969,252.26 = 782,424.16/x
  3. Step 3: Cross multiply
    1,427,005.05x = 1,969,252.26 × 782,424.16
  4. Step 4: Simplify right side
    1,427,005.05x = 1,540,790,537,501.38
  5. Step 5: Solve for x
    x = 1,540,790,537,501.38/1,427,005.05
  6. Step 6: Final answer
    x = 1,079,737.27

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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.