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Finding the Fourth Proportional to 550,235.48, 759,254.81 and 320,735.34

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Solution

The fourth proportional to 550,235.48, 759,254.81 and 320,735.34 is: 442,573.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,235.48 : 759,254.81 = 320,735.34 : x
  2. Step 2: Convert to fraction form
    550,235.48/759,254.81 = 320,735.34/x
  3. Step 3: Cross multiply
    550,235.48x = 759,254.81 × 320,735.34
  4. Step 4: Simplify right side
    550,235.48x = 243,519,848,028.31
  5. Step 5: Solve for x
    x = 243,519,848,028.31/550,235.48
  6. Step 6: Final answer
    x = 442,573.88

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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.