Home / 2,140,019.56-3,209,997.48-520,803.64

Finding the Fourth Proportional to 2,140,019.56, 3,209,997.48 and 520,803.64

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Solution

The fourth proportional to 2,140,019.56, 3,209,997.48 and 520,803.64 is: 781,197.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,019.56 : 3,209,997.48 = 520,803.64 : x
  2. Step 2: Convert to fraction form
    2,140,019.56/3,209,997.48 = 520,803.64/x
  3. Step 3: Cross multiply
    2,140,019.56x = 3,209,997.48 × 520,803.64
  4. Step 4: Simplify right side
    2,140,019.56x = 1,671,778,371,974.83
  5. Step 5: Solve for x
    x = 1,671,778,371,974.83/2,140,019.56
  6. Step 6: Final answer
    x = 781,197.71

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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.