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Finding the Fourth Proportional to 545,608.36, 752,977.38 and 330,757.48

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Solution

The fourth proportional to 545,608.36, 752,977.38 and 330,757.48 is: 456,468.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,608.36 : 752,977.38 = 330,757.48 : x
  2. Step 2: Convert to fraction form
    545,608.36/752,977.38 = 330,757.48/x
  3. Step 3: Cross multiply
    545,608.36x = 752,977.38 × 330,757.48
  4. Step 4: Simplify right side
    545,608.36x = 249,052,900,705.80
  5. Step 5: Solve for x
    x = 249,052,900,705.80/545,608.36
  6. Step 6: Final answer
    x = 456,468.26

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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.