Home / 1,901,988.46-2,620,332.75-1,328,119.66

Finding the Fourth Proportional to 1,901,988.46, 2,620,332.75 and 1,328,119.66

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Solution

The fourth proportional to 1,901,988.46, 2,620,332.75 and 1,328,119.66 is: 1,829,724.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901,988.46 : 2,620,332.75 = 1,328,119.66 : x
  2. Step 2: Convert to fraction form
    1,901,988.46/2,620,332.75 = 1,328,119.66/x
  3. Step 3: Cross multiply
    1,901,988.46x = 2,620,332.75 × 1,328,119.66
  4. Step 4: Simplify right side
    1,901,988.46x = 3,480,115,441,016.87
  5. Step 5: Solve for x
    x = 3,480,115,441,016.87/1,901,988.46
  6. Step 6: Final answer
    x = 1,829,724.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.