Home / 1,942,887.30-2,912,192.55-680,064.90

Finding the Fourth Proportional to 1,942,887.30, 2,912,192.55 and 680,064.90

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Solution

The fourth proportional to 1,942,887.30, 2,912,192.55 and 680,064.90 is: 1,019,348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,887.30 : 2,912,192.55 = 680,064.90 : x
  2. Step 2: Convert to fraction form
    1,942,887.30/2,912,192.55 = 680,064.90/x
  3. Step 3: Cross multiply
    1,942,887.30x = 2,912,192.55 × 680,064.90
  4. Step 4: Simplify right side
    1,942,887.30x = 1,980,479,935,296.50
  5. Step 5: Solve for x
    x = 1,980,479,935,296.50/1,942,887.30
  6. Step 6: Final answer
    x = 1,019,348.85

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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.