Home / 1,188,800.38-1,641,180.99-916,271.02

Finding the Fourth Proportional to 1,188,800.38, 1,641,180.99 and 916,271.02

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Solution

The fourth proportional to 1,188,800.38, 1,641,180.99 and 916,271.02 is: 1,264,944.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,800.38 : 1,641,180.99 = 916,271.02 : x
  2. Step 2: Convert to fraction form
    1,188,800.38/1,641,180.99 = 916,271.02/x
  3. Step 3: Cross multiply
    1,188,800.38x = 1,641,180.99 × 916,271.02
  4. Step 4: Simplify right side
    1,188,800.38x = 1,503,766,579,711.91
  5. Step 5: Solve for x
    x = 1,503,766,579,711.91/1,188,800.38
  6. Step 6: Final answer
    x = 1,264,944.57

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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.