Home / 1,377,142.80-1,899,924.84-1,015,422.72

Finding the Fourth Proportional to 1,377,142.80, 1,899,924.84 and 1,015,422.72

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Solution

The fourth proportional to 1,377,142.80, 1,899,924.84 and 1,015,422.72 is: 1,400,890.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,142.80 : 1,899,924.84 = 1,015,422.72 : x
  2. Step 2: Convert to fraction form
    1,377,142.80/1,899,924.84 = 1,015,422.72/x
  3. Step 3: Cross multiply
    1,377,142.80x = 1,899,924.84 × 1,015,422.72
  4. Step 4: Simplify right side
    1,377,142.80x = 1,929,226,848,828.36
  5. Step 5: Solve for x
    x = 1,929,226,848,828.36/1,377,142.80
  6. Step 6: Final answer
    x = 1,400,890.92

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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.