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Finding the Fourth Proportional to 1,826,461.91, 2,739,711.36 and 815,635.37

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Solution

The fourth proportional to 1,826,461.91, 2,739,711.36 and 815,635.37 is: 1,223,461.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826,461.91 : 2,739,711.36 = 815,635.37 : x
  2. Step 2: Convert to fraction form
    1,826,461.91/2,739,711.36 = 815,635.37/x
  3. Step 3: Cross multiply
    1,826,461.91x = 2,739,711.36 × 815,635.37
  4. Step 4: Simplify right side
    1,826,461.91x = 2,234,605,488,806.80
  5. Step 5: Solve for x
    x = 2,234,605,488,806.80/1,826,461.91
  6. Step 6: Final answer
    x = 1,223,461.31

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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.