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Finding the Fourth Proportional to 489,364.48, 733,959.06 and 134,331.76

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Solution

The fourth proportional to 489,364.48, 733,959.06 and 134,331.76 is: 201,473.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,364.48 : 733,959.06 = 134,331.76 : x
  2. Step 2: Convert to fraction form
    489,364.48/733,959.06 = 134,331.76/x
  3. Step 3: Cross multiply
    489,364.48x = 733,959.06 × 134,331.76
  4. Step 4: Simplify right side
    489,364.48x = 98,594,012,297.75
  5. Step 5: Solve for x
    x = 98,594,012,297.75/489,364.48
  6. Step 6: Final answer
    x = 201,473.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.