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Finding the Fourth Proportional to 548,585.76, 757,111.14 and 306,929.56

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Solution

The fourth proportional to 548,585.76, 757,111.14 and 306,929.56 is: 423,597.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,585.76 : 757,111.14 = 306,929.56 : x
  2. Step 2: Convert to fraction form
    548,585.76/757,111.14 = 306,929.56/x
  3. Step 3: Cross multiply
    548,585.76x = 757,111.14 × 306,929.56
  4. Step 4: Simplify right side
    548,585.76x = 232,379,789,071.30
  5. Step 5: Solve for x
    x = 232,379,789,071.30/548,585.76
  6. Step 6: Final answer
    x = 423,597.92

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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.