Home / 1,007,979.60-1,511,969.40-756,037.20

Finding the Fourth Proportional to 1,007,979.60, 1,511,969.40 and 756,037.20

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Solution

The fourth proportional to 1,007,979.60, 1,511,969.40 and 756,037.20 is: 1,134,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,979.60 : 1,511,969.40 = 756,037.20 : x
  2. Step 2: Convert to fraction form
    1,007,979.60/1,511,969.40 = 756,037.20/x
  3. Step 3: Cross multiply
    1,007,979.60x = 1,511,969.40 × 756,037.20
  4. Step 4: Simplify right side
    1,007,979.60x = 1,143,105,111,661.68
  5. Step 5: Solve for x
    x = 1,143,105,111,661.68/1,007,979.60
  6. Step 6: Final answer
    x = 1,134,055.80

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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.