Home / 1,889,126.20-2,833,689.30-767,999.80

Finding the Fourth Proportional to 1,889,126.20, 2,833,689.30 and 767,999.80

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Solution

The fourth proportional to 1,889,126.20, 2,833,689.30 and 767,999.80 is: 1,151,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,126.20 : 2,833,689.30 = 767,999.80 : x
  2. Step 2: Convert to fraction form
    1,889,126.20/2,833,689.30 = 767,999.80/x
  3. Step 3: Cross multiply
    1,889,126.20x = 2,833,689.30 × 767,999.80
  4. Step 4: Simplify right side
    1,889,126.20x = 2,176,272,815,662.14
  5. Step 5: Solve for x
    x = 2,176,272,815,662.14/1,889,126.20
  6. Step 6: Final answer
    x = 1,151,999.70

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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.