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Finding the Fourth Proportional to 548,579.08, 757,111.86 and 306,954.28

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Solution

The fourth proportional to 548,579.08, 757,111.86 and 306,954.28 is: 423,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,579.08 : 757,111.86 = 306,954.28 : x
  2. Step 2: Convert to fraction form
    548,579.08/757,111.86 = 306,954.28/x
  3. Step 3: Cross multiply
    548,579.08x = 757,111.86 × 306,954.28
  4. Step 4: Simplify right side
    548,579.08x = 232,398,725,865.76
  5. Step 5: Solve for x
    x = 232,398,725,865.76/548,579.08
  6. Step 6: Final answer
    x = 423,637.60

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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.