Home / 1,815,279.84-2,505,145.86-999,543.42

Finding the Fourth Proportional to 1,815,279.84, 2,505,145.86 and 999,543.42

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Solution

The fourth proportional to 1,815,279.84, 2,505,145.86 and 999,543.42 is: 1,379,402.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,279.84 : 2,505,145.86 = 999,543.42 : x
  2. Step 2: Convert to fraction form
    1,815,279.84/2,505,145.86 = 999,543.42/x
  3. Step 3: Cross multiply
    1,815,279.84x = 2,505,145.86 × 999,543.42
  4. Step 4: Simplify right side
    1,815,279.84x = 2,504,002,060,503.24
  5. Step 5: Solve for x
    x = 2,504,002,060,503.24/1,815,279.84
  6. Step 6: Final answer
    x = 1,379,402.78

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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.