Home / 1,280,835.29-1,921,219.85-416,265.38

Finding the Fourth Proportional to 1,280,835.29, 1,921,219.85 and 416,265.38

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Solution

The fourth proportional to 1,280,835.29, 1,921,219.85 and 416,265.38 is: 624,387.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,835.29 : 1,921,219.85 = 416,265.38 : x
  2. Step 2: Convert to fraction form
    1,280,835.29/1,921,219.85 = 416,265.38/x
  3. Step 3: Cross multiply
    1,280,835.29x = 1,921,219.85 × 416,265.38
  4. Step 4: Simplify right side
    1,280,835.29x = 799,737,302,358.36
  5. Step 5: Solve for x
    x = 799,737,302,358.36/1,280,835.29
  6. Step 6: Final answer
    x = 624,387.31

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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.