Home / 1,384,559.86-1,910,717.49-812,012.98

Finding the Fourth Proportional to 1,384,559.86, 1,910,717.49 and 812,012.98

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Solution

The fourth proportional to 1,384,559.86, 1,910,717.49 and 812,012.98 is: 1,120,592.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,559.86 : 1,910,717.49 = 812,012.98 : x
  2. Step 2: Convert to fraction form
    1,384,559.86/1,910,717.49 = 812,012.98/x
  3. Step 3: Cross multiply
    1,384,559.86x = 1,910,717.49 × 812,012.98
  4. Step 4: Simplify right side
    1,384,559.86x = 1,551,527,402,993.02
  5. Step 5: Solve for x
    x = 1,551,527,402,993.02/1,384,559.86
  6. Step 6: Final answer
    x = 1,120,592.51

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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.