Home / 480,584.12-720,919.23-139,022.18

Finding the Fourth Proportional to 480,584.12, 720,919.23 and 139,022.18

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Solution

The fourth proportional to 480,584.12, 720,919.23 and 139,022.18 is: 208,545.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,584.12 : 720,919.23 = 139,022.18 : x
  2. Step 2: Convert to fraction form
    480,584.12/720,919.23 = 139,022.18/x
  3. Step 3: Cross multiply
    480,584.12x = 720,919.23 × 139,022.18
  4. Step 4: Simplify right side
    480,584.12x = 100,223,759,353.93
  5. Step 5: Solve for x
    x = 100,223,759,353.93/480,584.12
  6. Step 6: Final answer
    x = 208,545.72

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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.