Home / 1,267,981.64-1,901,980-321,355.16

Finding the Fourth Proportional to 1,267,981.64, 1,901,980 and 321,355.16

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Solution

The fourth proportional to 1,267,981.64, 1,901,980 and 321,355.16 is: 482,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,981.64 : 1,901,980 = 321,355.16 : x
  2. Step 2: Convert to fraction form
    1,267,981.64/1,901,980 = 321,355.16/x
  3. Step 3: Cross multiply
    1,267,981.64x = 1,901,980 × 321,355.16
  4. Step 4: Simplify right side
    1,267,981.64x = 611,211,087,216.80
  5. Step 5: Solve for x
    x = 611,211,087,216.80/1,267,981.64
  6. Step 6: Final answer
    x = 482,034.65

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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.