Home / 1,420,113.52-2,131,228.23-1,042,011.28

Finding the Fourth Proportional to 1,420,113.52, 2,131,228.23 and 1,042,011.28

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Solution

The fourth proportional to 1,420,113.52, 2,131,228.23 and 1,042,011.28 is: 1,563,793.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,113.52 : 2,131,228.23 = 1,042,011.28 : x
  2. Step 2: Convert to fraction form
    1,420,113.52/2,131,228.23 = 1,042,011.28/x
  3. Step 3: Cross multiply
    1,420,113.52x = 2,131,228.23 × 1,042,011.28
  4. Step 4: Simplify right side
    1,420,113.52x = 2,220,763,855,914.43
  5. Step 5: Solve for x
    x = 2,220,763,855,914.43/1,420,113.52
  6. Step 6: Final answer
    x = 1,563,793.19

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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.