Home / 1,122,900.36-1,684,169.79-313,305.78

Finding the Fourth Proportional to 1,122,900.36, 1,684,169.79 and 313,305.78

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Solution

The fourth proportional to 1,122,900.36, 1,684,169.79 and 313,305.78 is: 469,908.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,900.36 : 1,684,169.79 = 313,305.78 : x
  2. Step 2: Convert to fraction form
    1,122,900.36/1,684,169.79 = 313,305.78/x
  3. Step 3: Cross multiply
    1,122,900.36x = 1,684,169.79 × 313,305.78
  4. Step 4: Simplify right side
    1,122,900.36x = 527,660,129,708.39
  5. Step 5: Solve for x
    x = 527,660,129,708.39/1,122,900.36
  6. Step 6: Final answer
    x = 469,908.24

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1.5x scale

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.