Home / 1,280,941.68-1,921,379.52-416,371.92

Finding the Fourth Proportional to 1,280,941.68, 1,921,379.52 and 416,371.92

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Solution

The fourth proportional to 1,280,941.68, 1,921,379.52 and 416,371.92 is: 624,547.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,941.68 : 1,921,379.52 = 416,371.92 : x
  2. Step 2: Convert to fraction form
    1,280,941.68/1,921,379.52 = 416,371.92/x
  3. Step 3: Cross multiply
    1,280,941.68x = 1,921,379.52 × 416,371.92
  4. Step 4: Simplify right side
    1,280,941.68x = 800,008,479,791.08
  5. Step 5: Solve for x
    x = 800,008,479,791.08/1,280,941.68
  6. Step 6: Final answer
    x = 624,547.15

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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.