Home / 990,436.88-1,486,162.00-471,699.38

Finding the Fourth Proportional to 990,436.88, 1,486,162.00 and 471,699.38

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Solution

The fourth proportional to 990,436.88, 1,486,162.00 and 471,699.38 is: 707,790.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,436.88 : 1,486,162.00 = 471,699.38 : x
  2. Step 2: Convert to fraction form
    990,436.88/1,486,162.00 = 471,699.38/x
  3. Step 3: Cross multiply
    990,436.88x = 1,486,162.00 × 471,699.38
  4. Step 4: Simplify right side
    990,436.88x = 701,021,687,138.37
  5. Step 5: Solve for x
    x = 701,021,687,138.37/990,436.88
  6. Step 6: Final answer
    x = 707,790.37

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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.