Home / 1,185,716.30-1,778,568.49-287,158.01

Finding the Fourth Proportional to 1,185,716.30, 1,778,568.49 and 287,158.01

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Solution

The fourth proportional to 1,185,716.30, 1,778,568.49 and 287,158.01 is: 430,735.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,716.30 : 1,778,568.49 = 287,158.01 : x
  2. Step 2: Convert to fraction form
    1,185,716.30/1,778,568.49 = 287,158.01/x
  3. Step 3: Cross multiply
    1,185,716.30x = 1,778,568.49 × 287,158.01
  4. Step 4: Simplify right side
    1,185,716.30x = 510,730,179,703.21
  5. Step 5: Solve for x
    x = 510,730,179,703.21/1,185,716.30
  6. Step 6: Final answer
    x = 430,735.57

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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.