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Finding the Fourth Proportional to 545,004.75, 752,106.56 and 306,540.75

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Solution

The fourth proportional to 545,004.75, 752,106.56 and 306,540.75 is: 423,026.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,004.75 : 752,106.56 = 306,540.75 : x
  2. Step 2: Convert to fraction form
    545,004.75/752,106.56 = 306,540.75/x
  3. Step 3: Cross multiply
    545,004.75x = 752,106.56 × 306,540.75
  4. Step 4: Simplify right side
    545,004.75x = 230,551,308,982.32
  5. Step 5: Solve for x
    x = 230,551,308,982.32/545,004.75
  6. Step 6: Final answer
    x = 423,026.24

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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.