Home / 2,185,123.43-3,015,482.97-1,218,313.91

Finding the Fourth Proportional to 2,185,123.43, 3,015,482.97 and 1,218,313.91

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Solution

The fourth proportional to 2,185,123.43, 3,015,482.97 and 1,218,313.91 is: 1,681,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,123.43 : 3,015,482.97 = 1,218,313.91 : x
  2. Step 2: Convert to fraction form
    2,185,123.43/3,015,482.97 = 1,218,313.91/x
  3. Step 3: Cross multiply
    2,185,123.43x = 3,015,482.97 × 1,218,313.91
  4. Step 4: Simplify right side
    2,185,123.43x = 3,673,804,832,641.70
  5. Step 5: Solve for x
    x = 3,673,804,832,641.70/2,185,123.43
  6. Step 6: Final answer
    x = 1,681,280.24

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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.