Home / 1,268,041.32-1,902,275.82-426,393

Finding the Fourth Proportional to 1,268,041.32, 1,902,275.82 and 426,393

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Solution

The fourth proportional to 1,268,041.32, 1,902,275.82 and 426,393 is: 639,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,041.32 : 1,902,275.82 = 426,393 : x
  2. Step 2: Convert to fraction form
    1,268,041.32/1,902,275.82 = 426,393/x
  3. Step 3: Cross multiply
    1,268,041.32x = 1,902,275.82 × 426,393
  4. Step 4: Simplify right side
    1,268,041.32x = 811,117,093,717.26
  5. Step 5: Solve for x
    x = 811,117,093,717.26/1,268,041.32
  6. Step 6: Final answer
    x = 639,661.41

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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.