Home / 550,383.09-759,527.34-305,405.07

Finding the Fourth Proportional to 550,383.09, 759,527.34 and 305,405.07

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Solution

The fourth proportional to 550,383.09, 759,527.34 and 305,405.07 is: 421,458.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,383.09 : 759,527.34 = 305,405.07 : x
  2. Step 2: Convert to fraction form
    550,383.09/759,527.34 = 305,405.07/x
  3. Step 3: Cross multiply
    550,383.09x = 759,527.34 × 305,405.07
  4. Step 4: Simplify right side
    550,383.09x = 231,963,500,439.61
  5. Step 5: Solve for x
    x = 231,963,500,439.61/550,383.09
  6. Step 6: Final answer
    x = 421,458.26

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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.