Home / 1,578,491.97-2,367,001.81-820,129.56

Finding the Fourth Proportional to 1,578,491.97, 2,367,001.81 and 820,129.56

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Solution

The fourth proportional to 1,578,491.97, 2,367,001.81 and 820,129.56 is: 1,229,811.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,491.97 : 2,367,001.81 = 820,129.56 : x
  2. Step 2: Convert to fraction form
    1,578,491.97/2,367,001.81 = 820,129.56/x
  3. Step 3: Cross multiply
    1,578,491.97x = 2,367,001.81 × 820,129.56
  4. Step 4: Simplify right side
    1,578,491.97x = 1,941,248,152,954.50
  5. Step 5: Solve for x
    x = 1,941,248,152,954.50/1,578,491.97
  6. Step 6: Final answer
    x = 1,229,811.86

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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.