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Finding the Fourth Proportional to 500,628.32, 690,852.83 and 293,893.38

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Solution

The fourth proportional to 500,628.32, 690,852.83 and 293,893.38 is: 405,564.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,628.32 : 690,852.83 = 293,893.38 : x
  2. Step 2: Convert to fraction form
    500,628.32/690,852.83 = 293,893.38/x
  3. Step 3: Cross multiply
    500,628.32x = 690,852.83 × 293,893.38
  4. Step 4: Simplify right side
    500,628.32x = 203,037,071,821.80
  5. Step 5: Solve for x
    x = 203,037,071,821.80/500,628.32
  6. Step 6: Final answer
    x = 405,564.50

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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.