Home / 1,543,391.92-2,129,895.84-855,078.40

Finding the Fourth Proportional to 1,543,391.92, 2,129,895.84 and 855,078.40

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Solution

The fourth proportional to 1,543,391.92, 2,129,895.84 and 855,078.40 is: 1,180,016.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,391.92 : 2,129,895.84 = 855,078.40 : x
  2. Step 2: Convert to fraction form
    1,543,391.92/2,129,895.84 = 855,078.40/x
  3. Step 3: Cross multiply
    1,543,391.92x = 2,129,895.84 × 855,078.40
  4. Step 4: Simplify right side
    1,543,391.92x = 1,821,227,927,033.86
  5. Step 5: Solve for x
    x = 1,821,227,927,033.86/1,543,391.92
  6. Step 6: Final answer
    x = 1,180,016.50

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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.