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Finding the Fourth Proportional to 478,829.70, 660,814.74 and 263,969.37

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Solution

The fourth proportional to 478,829.70, 660,814.74 and 263,969.37 is: 364,294.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,829.70 : 660,814.74 = 263,969.37 : x
  2. Step 2: Convert to fraction form
    478,829.70/660,814.74 = 263,969.37/x
  3. Step 3: Cross multiply
    478,829.70x = 660,814.74 × 263,969.37
  4. Step 4: Simplify right side
    478,829.70x = 174,434,850,604.51
  5. Step 5: Solve for x
    x = 174,434,850,604.51/478,829.70
  6. Step 6: Final answer
    x = 364,294.13

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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.