Home / 2,800,897.70-4,200,362.40-1,285,306.70

Finding the Fourth Proportional to 2,800,897.70, 4,200,362.40 and 1,285,306.70

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Solution

The fourth proportional to 2,800,897.70, 4,200,362.40 and 1,285,306.70 is: 1,927,508.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,897.70 : 4,200,362.40 = 1,285,306.70 : x
  2. Step 2: Convert to fraction form
    2,800,897.70/4,200,362.40 = 1,285,306.70/x
  3. Step 3: Cross multiply
    2,800,897.70x = 4,200,362.40 × 1,285,306.70
  4. Step 4: Simplify right side
    2,800,897.70x = 5,398,753,935,148.08
  5. Step 5: Solve for x
    x = 5,398,753,935,148.08/2,800,897.70
  6. Step 6: Final answer
    x = 1,927,508.43

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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.