Home / 1,553,002.80-2,143,139.49-873,939.30

Finding the Fourth Proportional to 1,553,002.80, 2,143,139.49 and 873,939.30

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Solution

The fourth proportional to 1,553,002.80, 2,143,139.49 and 873,939.30 is: 1,206,033.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553,002.80 : 2,143,139.49 = 873,939.30 : x
  2. Step 2: Convert to fraction form
    1,553,002.80/2,143,139.49 = 873,939.30/x
  3. Step 3: Cross multiply
    1,553,002.80x = 2,143,139.49 × 873,939.30
  4. Step 4: Simplify right side
    1,553,002.80x = 1,872,973,825,692.96
  5. Step 5: Solve for x
    x = 1,872,973,825,692.96/1,553,002.80
  6. Step 6: Final answer
    x = 1,206,033.77

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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.