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Finding the Fourth Proportional to 489,462.14, 675,695.07 and 328,258.22

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Solution

The fourth proportional to 489,462.14, 675,695.07 and 328,258.22 is: 453,155.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,462.14 : 675,695.07 = 328,258.22 : x
  2. Step 2: Convert to fraction form
    489,462.14/675,695.07 = 328,258.22/x
  3. Step 3: Cross multiply
    489,462.14x = 675,695.07 × 328,258.22
  4. Step 4: Simplify right side
    489,462.14x = 221,802,460,940.98
  5. Step 5: Solve for x
    x = 221,802,460,940.98/489,462.14
  6. Step 6: Final answer
    x = 453,155.50

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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.