Home / 1,427,110.55-1,969,411.12-782,541.51

Finding the Fourth Proportional to 1,427,110.55, 1,969,411.12 and 782,541.51

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Solution

The fourth proportional to 1,427,110.55, 1,969,411.12 and 782,541.51 is: 1,079,906.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,110.55 : 1,969,411.12 = 782,541.51 : x
  2. Step 2: Convert to fraction form
    1,427,110.55/1,969,411.12 = 782,541.51/x
  3. Step 3: Cross multiply
    1,427,110.55x = 1,969,411.12 × 782,541.51
  4. Step 4: Simplify right side
    1,427,110.55x = 1,541,145,942,313.95
  5. Step 5: Solve for x
    x = 1,541,145,942,313.95/1,427,110.55
  6. Step 6: Final answer
    x = 1,079,906.49

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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.