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Finding the Fourth Proportional to 545,627.70, 752,847.46 and 330,820.56

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Solution

The fourth proportional to 545,627.70, 752,847.46 and 330,820.56 is: 456,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,627.70 : 752,847.46 = 330,820.56 : x
  2. Step 2: Convert to fraction form
    545,627.70/752,847.46 = 330,820.56/x
  3. Step 3: Cross multiply
    545,627.70x = 752,847.46 × 330,820.56
  4. Step 4: Simplify right side
    545,627.70x = 249,057,418,311.78
  5. Step 5: Solve for x
    x = 249,057,418,311.78/545,627.70
  6. Step 6: Final answer
    x = 456,460.36

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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.