Home / 1,320,739.97-1,980,300.29-562,149.45

Finding the Fourth Proportional to 1,320,739.97, 1,980,300.29 and 562,149.45

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Solution

The fourth proportional to 1,320,739.97, 1,980,300.29 and 562,149.45 is: 842,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,739.97 : 1,980,300.29 = 562,149.45 : x
  2. Step 2: Convert to fraction form
    1,320,739.97/1,980,300.29 = 562,149.45/x
  3. Step 3: Cross multiply
    1,320,739.97x = 1,980,300.29 × 562,149.45
  4. Step 4: Simplify right side
    1,320,739.97x = 1,113,224,716,047.59
  5. Step 5: Solve for x
    x = 1,113,224,716,047.59/1,320,739.97
  6. Step 6: Final answer
    x = 842,879.56

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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.