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Finding the Fourth Proportional to 489,925.06, 734,698.60 and 190,366.20

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Solution

The fourth proportional to 489,925.06, 734,698.60 and 190,366.20 is: 285,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,925.06 : 734,698.60 = 190,366.20 : x
  2. Step 2: Convert to fraction form
    489,925.06/734,698.60 = 190,366.20/x
  3. Step 3: Cross multiply
    489,925.06x = 734,698.60 × 190,366.20
  4. Step 4: Simplify right side
    489,925.06x = 139,861,780,627.32
  5. Step 5: Solve for x
    x = 139,861,780,627.32/489,925.06
  6. Step 6: Final answer
    x = 285,475.87

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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.