Home / 813,090.48-1,122,049.92-450,513

Finding the Fourth Proportional to 813,090.48, 1,122,049.92 and 450,513

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Solution

The fourth proportional to 813,090.48, 1,122,049.92 and 450,513 is: 621,699.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,090.48 : 1,122,049.92 = 450,513 : x
  2. Step 2: Convert to fraction form
    813,090.48/1,122,049.92 = 450,513/x
  3. Step 3: Cross multiply
    813,090.48x = 1,122,049.92 × 450,513
  4. Step 4: Simplify right side
    813,090.48x = 505,498,075,608.96
  5. Step 5: Solve for x
    x = 505,498,075,608.96/813,090.48
  6. Step 6: Final answer
    x = 621,699.66

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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.