Home / 2,800,901.70-4,200,368.40-1,285,310.70

Finding the Fourth Proportional to 2,800,901.70, 4,200,368.40 and 1,285,310.70

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Solution

The fourth proportional to 2,800,901.70, 4,200,368.40 and 1,285,310.70 is: 1,927,514.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,901.70 : 4,200,368.40 = 1,285,310.70 : x
  2. Step 2: Convert to fraction form
    2,800,901.70/4,200,368.40 = 1,285,310.70/x
  3. Step 3: Cross multiply
    2,800,901.70x = 4,200,368.40 × 1,285,310.70
  4. Step 4: Simplify right side
    2,800,901.70x = 5,398,778,448,461.88
  5. Step 5: Solve for x
    x = 5,398,778,448,461.88/2,800,901.70
  6. Step 6: Final answer
    x = 1,927,514.43

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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.