Home / 480,977.66-721,465.68-192,919.16

Finding the Fourth Proportional to 480,977.66, 721,465.68 and 192,919.16

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Solution

The fourth proportional to 480,977.66, 721,465.68 and 192,919.16 is: 289,378.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,977.66 : 721,465.68 = 192,919.16 : x
  2. Step 2: Convert to fraction form
    480,977.66/721,465.68 = 192,919.16/x
  3. Step 3: Cross multiply
    480,977.66x = 721,465.68 × 192,919.16
  4. Step 4: Simplify right side
    480,977.66x = 139,184,552,954.43
  5. Step 5: Solve for x
    x = 139,184,552,954.43/480,977.66
  6. Step 6: Final answer
    x = 289,378.42

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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.