Home / 1,321,124.41-1,823,155.19-777,280.69

Finding the Fourth Proportional to 1,321,124.41, 1,823,155.19 and 777,280.69

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Solution

The fourth proportional to 1,321,124.41, 1,823,155.19 and 777,280.69 is: 1,072,649.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,124.41 : 1,823,155.19 = 777,280.69 : x
  2. Step 2: Convert to fraction form
    1,321,124.41/1,823,155.19 = 777,280.69/x
  3. Step 3: Cross multiply
    1,321,124.41x = 1,823,155.19 × 777,280.69
  4. Step 4: Simplify right side
    1,321,124.41x = 1,417,103,324,060.28
  5. Step 5: Solve for x
    x = 1,417,103,324,060.28/1,321,124.41
  6. Step 6: Final answer
    x = 1,072,649.41

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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.