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Finding the Fourth Proportional to 539,906.54, 745,100.25 and 310,461.08

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Solution

The fourth proportional to 539,906.54, 745,100.25 and 310,461.08 is: 428,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,906.54 : 745,100.25 = 310,461.08 : x
  2. Step 2: Convert to fraction form
    539,906.54/745,100.25 = 310,461.08/x
  3. Step 3: Cross multiply
    539,906.54x = 745,100.25 × 310,461.08
  4. Step 4: Simplify right side
    539,906.54x = 231,324,628,323.27
  5. Step 5: Solve for x
    x = 231,324,628,323.27/539,906.54
  6. Step 6: Final answer
    x = 428,453.10

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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.