Home / 1,578,924.90-2,178,790.65-890,375.90

Finding the Fourth Proportional to 1,578,924.90, 2,178,790.65 and 890,375.90

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Solution

The fourth proportional to 1,578,924.90, 2,178,790.65 and 890,375.90 is: 1,228,647.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,924.90 : 2,178,790.65 = 890,375.90 : x
  2. Step 2: Convert to fraction form
    1,578,924.90/2,178,790.65 = 890,375.90/x
  3. Step 3: Cross multiply
    1,578,924.90x = 2,178,790.65 × 890,375.90
  4. Step 4: Simplify right side
    1,578,924.90x = 1,939,942,675,011.38
  5. Step 5: Solve for x
    x = 1,939,942,675,011.38/1,578,924.90
  6. Step 6: Final answer
    x = 1,228,647.84

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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.