Home / 1,267,637-1,901,458.72-321,007.80

Finding the Fourth Proportional to 1,267,637, 1,901,458.72 and 321,007.80

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Solution

The fourth proportional to 1,267,637, 1,901,458.72 and 321,007.80 is: 481,512.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,637 : 1,901,458.72 = 321,007.80 : x
  2. Step 2: Convert to fraction form
    1,267,637/1,901,458.72 = 321,007.80/x
  3. Step 3: Cross multiply
    1,267,637x = 1,901,458.72 × 321,007.80
  4. Step 4: Simplify right side
    1,267,637x = 610,383,080,498.02
  5. Step 5: Solve for x
    x = 610,383,080,498.02/1,267,637
  6. Step 6: Final answer
    x = 481,512.52

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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.