Home / 1,389,037.05-2,083,950.05-442,480.77

Finding the Fourth Proportional to 1,389,037.05, 2,083,950.05 and 442,480.77

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Solution

The fourth proportional to 1,389,037.05, 2,083,950.05 and 442,480.77 is: 663,846.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,037.05 : 2,083,950.05 = 442,480.77 : x
  2. Step 2: Convert to fraction form
    1,389,037.05/2,083,950.05 = 442,480.77/x
  3. Step 3: Cross multiply
    1,389,037.05x = 2,083,950.05 × 442,480.77
  4. Step 4: Simplify right side
    1,389,037.05x = 922,107,820,553.14
  5. Step 5: Solve for x
    x = 922,107,820,553.14/1,389,037.05
  6. Step 6: Final answer
    x = 663,846.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.