Home / 990,216.74-1,485,516.06-421,587.42

Finding the Fourth Proportional to 990,216.74, 1,485,516.06 and 421,587.42

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Solution

The fourth proportional to 990,216.74, 1,485,516.06 and 421,587.42 is: 632,462.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,216.74 : 1,485,516.06 = 421,587.42 : x
  2. Step 2: Convert to fraction form
    990,216.74/1,485,516.06 = 421,587.42/x
  3. Step 3: Cross multiply
    990,216.74x = 1,485,516.06 × 421,587.42
  4. Step 4: Simplify right side
    990,216.74x = 626,274,883,103.97
  5. Step 5: Solve for x
    x = 626,274,883,103.97/990,216.74
  6. Step 6: Final answer
    x = 632,462.43

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.