Home / 1,490,620.35-2,235,967.11-543,990.90

Finding the Fourth Proportional to 1,490,620.35, 2,235,967.11 and 543,990.90

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Solution

The fourth proportional to 1,490,620.35, 2,235,967.11 and 543,990.90 is: 815,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,620.35 : 2,235,967.11 = 543,990.90 : x
  2. Step 2: Convert to fraction form
    1,490,620.35/2,235,967.11 = 543,990.90/x
  3. Step 3: Cross multiply
    1,490,620.35x = 2,235,967.11 × 543,990.90
  4. Step 4: Simplify right side
    1,490,620.35x = 1,216,345,760,539.30
  5. Step 5: Solve for x
    x = 1,216,345,760,539.30/1,490,620.35
  6. Step 6: Final answer
    x = 815,999.70

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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.