Home / 1,087,890.43-1,631,833.84-289,171.97

Finding the Fourth Proportional to 1,087,890.43, 1,631,833.84 and 289,171.97

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Solution

The fourth proportional to 1,087,890.43, 1,631,833.84 and 289,171.97 is: 433,757.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,890.43 : 1,631,833.84 = 289,171.97 : x
  2. Step 2: Convert to fraction form
    1,087,890.43/1,631,833.84 = 289,171.97/x
  3. Step 3: Cross multiply
    1,087,890.43x = 1,631,833.84 × 289,171.97
  4. Step 4: Simplify right side
    1,087,890.43x = 471,880,604,779.61
  5. Step 5: Solve for x
    x = 471,880,604,779.61/1,087,890.43
  6. Step 6: Final answer
    x = 433,757.48

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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.