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Finding the Fourth Proportional to 547,505.94, 755,483.54 and 305,757.70

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Solution

The fourth proportional to 547,505.94, 755,483.54 and 305,757.70 is: 421,903.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,505.94 : 755,483.54 = 305,757.70 : x
  2. Step 2: Convert to fraction form
    547,505.94/755,483.54 = 305,757.70/x
  3. Step 3: Cross multiply
    547,505.94x = 755,483.54 × 305,757.70
  4. Step 4: Simplify right side
    547,505.94x = 230,994,909,578.26
  5. Step 5: Solve for x
    x = 230,994,909,578.26/547,505.94
  6. Step 6: Final answer
    x = 421,903.93

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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.