Home / 1,816,789.15-2,507,145.85-989,897.17

Finding the Fourth Proportional to 1,816,789.15, 2,507,145.85 and 989,897.17

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Solution

The fourth proportional to 1,816,789.15, 2,507,145.85 and 989,897.17 is: 1,366,045.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816,789.15 : 2,507,145.85 = 989,897.17 : x
  2. Step 2: Convert to fraction form
    1,816,789.15/2,507,145.85 = 989,897.17/x
  3. Step 3: Cross multiply
    1,816,789.15x = 2,507,145.85 × 989,897.17
  4. Step 4: Simplify right side
    1,816,789.15x = 2,481,816,581,362.65
  5. Step 5: Solve for x
    x = 2,481,816,581,362.65/1,816,789.15
  6. Step 6: Final answer
    x = 1,366,045.47

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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.