Home / 1,355,544.72-2,031,995.04-645,382.08

Finding the Fourth Proportional to 1,355,544.72, 2,031,995.04 and 645,382.08

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Solution

The fourth proportional to 1,355,544.72, 2,031,995.04 and 645,382.08 is: 967,443.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,544.72 : 2,031,995.04 = 645,382.08 : x
  2. Step 2: Convert to fraction form
    1,355,544.72/2,031,995.04 = 645,382.08/x
  3. Step 3: Cross multiply
    1,355,544.72x = 2,031,995.04 × 645,382.08
  4. Step 4: Simplify right side
    1,355,544.72x = 1,311,413,185,464.88
  5. Step 5: Solve for x
    x = 1,311,413,185,464.88/1,355,544.72
  6. Step 6: Final answer
    x = 967,443.69

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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.