Home / 489,904.94-734,903.62-190,408.46

Finding the Fourth Proportional to 489,904.94, 734,903.62 and 190,408.46

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Solution

The fourth proportional to 489,904.94, 734,903.62 and 190,408.46 is: 285,630.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,904.94 : 734,903.62 = 190,408.46 : x
  2. Step 2: Convert to fraction form
    489,904.94/734,903.62 = 190,408.46/x
  3. Step 3: Cross multiply
    489,904.94x = 734,903.62 × 190,408.46
  4. Step 4: Simplify right side
    489,904.94x = 139,931,862,382.09
  5. Step 5: Solve for x
    x = 139,931,862,382.09/489,904.94
  6. Step 6: Final answer
    x = 285,630.64

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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.