Home / 1,211,510.85-1,818,109.48-501,542.61

Finding the Fourth Proportional to 1,211,510.85, 1,818,109.48 and 501,542.61

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Solution

The fourth proportional to 1,211,510.85, 1,818,109.48 and 501,542.61 is: 752,662.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,510.85 : 1,818,109.48 = 501,542.61 : x
  2. Step 2: Convert to fraction form
    1,211,510.85/1,818,109.48 = 501,542.61/x
  3. Step 3: Cross multiply
    1,211,510.85x = 1,818,109.48 × 501,542.61
  4. Step 4: Simplify right side
    1,211,510.85x = 911,859,373,864.94
  5. Step 5: Solve for x
    x = 911,859,373,864.94/1,211,510.85
  6. Step 6: Final answer
    x = 752,662.99

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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.