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Finding the Fourth Proportional to 483,888.86, 667,574.82 and 279,901.90

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Solution

The fourth proportional to 483,888.86, 667,574.82 and 279,901.90 is: 386,153.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,888.86 : 667,574.82 = 279,901.90 : x
  2. Step 2: Convert to fraction form
    483,888.86/667,574.82 = 279,901.90/x
  3. Step 3: Cross multiply
    483,888.86x = 667,574.82 × 279,901.90
  4. Step 4: Simplify right side
    483,888.86x = 186,855,458,841.22
  5. Step 5: Solve for x
    x = 186,855,458,841.22/483,888.86
  6. Step 6: Final answer
    x = 386,153.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.