Home / 1,280,219.88-1,920,615.81-481,508.35

Finding the Fourth Proportional to 1,280,219.88, 1,920,615.81 and 481,508.35

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Solution

The fourth proportional to 1,280,219.88, 1,920,615.81 and 481,508.35 is: 722,370.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,219.88 : 1,920,615.81 = 481,508.35 : x
  2. Step 2: Convert to fraction form
    1,280,219.88/1,920,615.81 = 481,508.35/x
  3. Step 3: Cross multiply
    1,280,219.88x = 1,920,615.81 × 481,508.35
  4. Step 4: Simplify right side
    1,280,219.88x = 924,792,543,049.82
  5. Step 5: Solve for x
    x = 924,792,543,049.82/1,280,219.88
  6. Step 6: Final answer
    x = 722,370.08

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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.