Home / 1,280,220.62-1,920,616.90-481,509.08

Finding the Fourth Proportional to 1,280,220.62, 1,920,616.90 and 481,509.08

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Solution

The fourth proportional to 1,280,220.62, 1,920,616.90 and 481,509.08 is: 722,371.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,220.62 : 1,920,616.90 = 481,509.08 : x
  2. Step 2: Convert to fraction form
    1,280,220.62/1,920,616.90 = 481,509.08/x
  3. Step 3: Cross multiply
    1,280,220.62x = 1,920,616.90 × 481,509.08
  4. Step 4: Simplify right side
    1,280,220.62x = 924,794,476,551.45
  5. Step 5: Solve for x
    x = 924,794,476,551.45/1,280,220.62
  6. Step 6: Final answer
    x = 722,371.18

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1.5x scale

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.