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Finding the Fourth Proportional to 484,709, 668,950.26 and 283,673.48

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Solution

The fourth proportional to 484,709, 668,950.26 and 283,673.48 is: 391,499.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,709 : 668,950.26 = 283,673.48 : x
  2. Step 2: Convert to fraction form
    484,709/668,950.26 = 283,673.48/x
  3. Step 3: Cross multiply
    484,709x = 668,950.26 × 283,673.48
  4. Step 4: Simplify right side
    484,709x = 189,763,448,201.11
  5. Step 5: Solve for x
    x = 189,763,448,201.11/484,709
  6. Step 6: Final answer
    x = 391,499.74

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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.