Home / 3,131,125.92-4,697,279.52-1,000,638

Finding the Fourth Proportional to 3,131,125.92, 4,697,279.52 and 1,000,638

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Solution

The fourth proportional to 3,131,125.92, 4,697,279.52 and 1,000,638 is: 1,501,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,125.92 : 4,697,279.52 = 1,000,638 : x
  2. Step 2: Convert to fraction form
    3,131,125.92/4,697,279.52 = 1,000,638/x
  3. Step 3: Cross multiply
    3,131,125.92x = 4,697,279.52 × 1,000,638
  4. Step 4: Simplify right side
    3,131,125.92x = 4,700,276,384,333.76
  5. Step 5: Solve for x
    x = 4,700,276,384,333.76/3,131,125.92
  6. Step 6: Final answer
    x = 1,501,145.76

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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.