Home / 1,320,009.94-1,821,353.61-803,625.22

Finding the Fourth Proportional to 1,320,009.94, 1,821,353.61 and 803,625.22

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Solution

The fourth proportional to 1,320,009.94, 1,821,353.61 and 803,625.22 is: 1,108,844.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,009.94 : 1,821,353.61 = 803,625.22 : x
  2. Step 2: Convert to fraction form
    1,320,009.94/1,821,353.61 = 803,625.22/x
  3. Step 3: Cross multiply
    1,320,009.94x = 1,821,353.61 × 803,625.22
  4. Step 4: Simplify right side
    1,320,009.94x = 1,463,685,695,534.04
  5. Step 5: Solve for x
    x = 1,463,685,695,534.04/1,320,009.94
  6. Step 6: Final answer
    x = 1,108,844.45

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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.