Home / 987,769.31-1,363,093.65-579,864.65

Finding the Fourth Proportional to 987,769.31, 1,363,093.65 and 579,864.65

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Solution

The fourth proportional to 987,769.31, 1,363,093.65 and 579,864.65 is: 800,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,769.31 : 1,363,093.65 = 579,864.65 : x
  2. Step 2: Convert to fraction form
    987,769.31/1,363,093.65 = 579,864.65/x
  3. Step 3: Cross multiply
    987,769.31x = 1,363,093.65 × 579,864.65
  4. Step 4: Simplify right side
    987,769.31x = 790,409,815,459.00
  5. Step 5: Solve for x
    x = 790,409,815,459.00/987,769.31
  6. Step 6: Final answer
    x = 800,196.78

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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.