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Finding the Fourth Proportional to 445,288.94, 666,356.71 and 276,888.57

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Solution

The fourth proportional to 445,288.94, 666,356.71 and 276,888.57 is: 414,352.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,288.94 : 666,356.71 = 276,888.57 : x
  2. Step 2: Convert to fraction form
    445,288.94/666,356.71 = 276,888.57/x
  3. Step 3: Cross multiply
    445,288.94x = 666,356.71 × 276,888.57
  4. Step 4: Simplify right side
    445,288.94x = 184,506,556,541.81
  5. Step 5: Solve for x
    x = 184,506,556,541.81/445,288.94
  6. Step 6: Final answer
    x = 414,352.43

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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.