Home / 1,578,194.25-2,178,121.50-890,007.72

Finding the Fourth Proportional to 1,578,194.25, 2,178,121.50 and 890,007.72

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Solution

The fourth proportional to 1,578,194.25, 2,178,121.50 and 890,007.72 is: 1,228,331.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,194.25 : 2,178,121.50 = 890,007.72 : x
  2. Step 2: Convert to fraction form
    1,578,194.25/2,178,121.50 = 890,007.72/x
  3. Step 3: Cross multiply
    1,578,194.25x = 2,178,121.50 × 890,007.72
  4. Step 4: Simplify right side
    1,578,194.25x = 1,938,544,950,097.98
  5. Step 5: Solve for x
    x = 1,938,544,950,097.98/1,578,194.25
  6. Step 6: Final answer
    x = 1,228,331.02

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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.