Home / 1,211,482.89-1,671,919.43-667,617.21

Finding the Fourth Proportional to 1,211,482.89, 1,671,919.43 and 667,617.21

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Solution

The fourth proportional to 1,211,482.89, 1,671,919.43 and 667,617.21 is: 921,352.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,482.89 : 1,671,919.43 = 667,617.21 : x
  2. Step 2: Convert to fraction form
    1,211,482.89/1,671,919.43 = 667,617.21/x
  3. Step 3: Cross multiply
    1,211,482.89x = 1,671,919.43 × 667,617.21
  4. Step 4: Simplify right side
    1,211,482.89x = 1,116,202,181,863.30
  5. Step 5: Solve for x
    x = 1,116,202,181,863.30/1,211,482.89
  6. Step 6: Final answer
    x = 921,352.00

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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.