Home / 1,280,244.32-1,906,782.42-1,274,056.86

Finding the Fourth Proportional to 1,280,244.32, 1,906,782.42 and 1,274,056.86

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Solution

The fourth proportional to 1,280,244.32, 1,906,782.42 and 1,274,056.86 is: 1,897,566.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,244.32 : 1,906,782.42 = 1,274,056.86 : x
  2. Step 2: Convert to fraction form
    1,280,244.32/1,906,782.42 = 1,274,056.86/x
  3. Step 3: Cross multiply
    1,280,244.32x = 1,906,782.42 × 1,274,056.86
  4. Step 4: Simplify right side
    1,280,244.32x = 2,429,349,222,728.40
  5. Step 5: Solve for x
    x = 2,429,349,222,728.40/1,280,244.32
  6. Step 6: Final answer
    x = 1,897,566.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.