Home / 1,388,852.72-2,082,589.92-442,100.36

Finding the Fourth Proportional to 1,388,852.72, 2,082,589.92 and 442,100.36

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Solution

The fourth proportional to 1,388,852.72, 2,082,589.92 and 442,100.36 is: 662,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,852.72 : 2,082,589.92 = 442,100.36 : x
  2. Step 2: Convert to fraction form
    1,388,852.72/2,082,589.92 = 442,100.36/x
  3. Step 3: Cross multiply
    1,388,852.72x = 2,082,589.92 × 442,100.36
  4. Step 4: Simplify right side
    1,388,852.72x = 920,713,753,364.37
  5. Step 5: Solve for x
    x = 920,713,753,364.37/1,388,852.72
  6. Step 6: Final answer
    x = 662,931.17

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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.