Home / 2,780,689.80-4,171,034.70-985,600.20

Finding the Fourth Proportional to 2,780,689.80, 4,171,034.70 and 985,600.20

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Solution

The fourth proportional to 2,780,689.80, 4,171,034.70 and 985,600.20 is: 1,478,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,689.80 : 4,171,034.70 = 985,600.20 : x
  2. Step 2: Convert to fraction form
    2,780,689.80/4,171,034.70 = 985,600.20/x
  3. Step 3: Cross multiply
    2,780,689.80x = 4,171,034.70 × 985,600.20
  4. Step 4: Simplify right side
    2,780,689.80x = 4,110,972,634,526.94
  5. Step 5: Solve for x
    x = 4,110,972,634,526.94/2,780,689.80
  6. Step 6: Final answer
    x = 1,478,400.30

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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.