Home / 722,911.68-1,082,643.82-418,662.98

Finding the Fourth Proportional to 722,911.68, 1,082,643.82 and 418,662.98

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Solution

The fourth proportional to 722,911.68, 1,082,643.82 and 418,662.98 is: 626,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,911.68 : 1,082,643.82 = 418,662.98 : x
  2. Step 2: Convert to fraction form
    722,911.68/1,082,643.82 = 418,662.98/x
  3. Step 3: Cross multiply
    722,911.68x = 1,082,643.82 × 418,662.98
  4. Step 4: Simplify right side
    722,911.68x = 453,262,887,959.78
  5. Step 5: Solve for x
    x = 453,262,887,959.78/722,911.68
  6. Step 6: Final answer
    x = 626,996.22

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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.