Home / 1,280,215.32-1,920,608.97-481,503.79

Finding the Fourth Proportional to 1,280,215.32, 1,920,608.97 and 481,503.79

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Solution

The fourth proportional to 1,280,215.32, 1,920,608.97 and 481,503.79 is: 722,363.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,215.32 : 1,920,608.97 = 481,503.79 : x
  2. Step 2: Convert to fraction form
    1,280,215.32/1,920,608.97 = 481,503.79/x
  3. Step 3: Cross multiply
    1,280,215.32x = 1,920,608.97 × 481,503.79
  4. Step 4: Simplify right side
    1,280,215.32x = 924,780,486,152.43
  5. Step 5: Solve for x
    x = 924,780,486,152.43/1,280,215.32
  6. Step 6: Final answer
    x = 722,363.24

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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.