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Finding the Fourth Proportional to 545,037.63, 751,372.41 and 383,390.97

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Solution

The fourth proportional to 545,037.63, 751,372.41 and 383,390.97 is: 528,531.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,037.63 : 751,372.41 = 383,390.97 : x
  2. Step 2: Convert to fraction form
    545,037.63/751,372.41 = 383,390.97/x
  3. Step 3: Cross multiply
    545,037.63x = 751,372.41 × 383,390.97
  4. Step 4: Simplify right side
    545,037.63x = 288,069,393,344.28
  5. Step 5: Solve for x
    x = 288,069,393,344.28/545,037.63
  6. Step 6: Final answer
    x = 528,531.21

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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.