Home / 445,290.95-666,359.71-276,890.57

Finding the Fourth Proportional to 445,290.95, 666,359.71 and 276,890.57

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Solution

The fourth proportional to 445,290.95, 666,359.71 and 276,890.57 is: 414,355.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,290.95 : 666,359.71 = 276,890.57 : x
  2. Step 2: Convert to fraction form
    445,290.95/666,359.71 = 276,890.57/x
  3. Step 3: Cross multiply
    445,290.95x = 666,359.71 × 276,890.57
  4. Step 4: Simplify right side
    445,290.95x = 184,508,720,900.61
  5. Step 5: Solve for x
    x = 184,508,720,900.61/445,290.95
  6. Step 6: Final answer
    x = 414,355.43

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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.