Home / 2,638,429.80-3,957,644.70-1,798,621.80

Finding the Fourth Proportional to 2,638,429.80, 3,957,644.70 and 1,798,621.80

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Solution

The fourth proportional to 2,638,429.80, 3,957,644.70 and 1,798,621.80 is: 2,697,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,429.80 : 3,957,644.70 = 1,798,621.80 : x
  2. Step 2: Convert to fraction form
    2,638,429.80/3,957,644.70 = 1,798,621.80/x
  3. Step 3: Cross multiply
    2,638,429.80x = 3,957,644.70 × 1,798,621.80
  4. Step 4: Simplify right side
    2,638,429.80x = 7,118,306,034,074.46
  5. Step 5: Solve for x
    x = 7,118,306,034,074.46/2,638,429.80
  6. Step 6: Final answer
    x = 2,697,932.70

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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.