Home / 788,553.09-1,088,202.20-449,021.34

Finding the Fourth Proportional to 788,553.09, 1,088,202.20 and 449,021.34

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Solution

The fourth proportional to 788,553.09, 1,088,202.20 and 449,021.34 is: 619,648.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,553.09 : 1,088,202.20 = 449,021.34 : x
  2. Step 2: Convert to fraction form
    788,553.09/1,088,202.20 = 449,021.34/x
  3. Step 3: Cross multiply
    788,553.09x = 1,088,202.20 × 449,021.34
  4. Step 4: Simplify right side
    788,553.09x = 488,626,007,789.84
  5. Step 5: Solve for x
    x = 488,626,007,789.84/788,553.09
  6. Step 6: Final answer
    x = 619,648.84

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Double scale
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1.5x scale

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.