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Finding the Fourth Proportional to 547,403.33, 755,373.06 and 305,671.48

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Solution

The fourth proportional to 547,403.33, 755,373.06 and 305,671.48 is: 421,802.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,403.33 : 755,373.06 = 305,671.48 : x
  2. Step 2: Convert to fraction form
    547,403.33/755,373.06 = 305,671.48/x
  3. Step 3: Cross multiply
    547,403.33x = 755,373.06 × 305,671.48
  4. Step 4: Simplify right side
    547,403.33x = 230,896,001,202.33
  5. Step 5: Solve for x
    x = 230,896,001,202.33/547,403.33
  6. Step 6: Final answer
    x = 421,802.33

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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.