Home / 489,972.74-734,611.58-190,200.66

Finding the Fourth Proportional to 489,972.74, 734,611.58 and 190,200.66

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Solution

The fourth proportional to 489,972.74, 734,611.58 and 190,200.66 is: 285,166.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,972.74 : 734,611.58 = 190,200.66 : x
  2. Step 2: Convert to fraction form
    489,972.74/734,611.58 = 190,200.66/x
  3. Step 3: Cross multiply
    489,972.74x = 734,611.58 × 190,200.66
  4. Step 4: Simplify right side
    489,972.74x = 139,723,607,359.64
  5. Step 5: Solve for x
    x = 139,723,607,359.64/489,972.74
  6. Step 6: Final answer
    x = 285,166.08

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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.