Home / 489,923.06-734,695.60-190,364.20

Finding the Fourth Proportional to 489,923.06, 734,695.60 and 190,364.20

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Solution

The fourth proportional to 489,923.06, 734,695.60 and 190,364.20 is: 285,472.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,923.06 : 734,695.60 = 190,364.20 : x
  2. Step 2: Convert to fraction form
    489,923.06/734,695.60 = 190,364.20/x
  3. Step 3: Cross multiply
    489,923.06x = 734,695.60 × 190,364.20
  4. Step 4: Simplify right side
    489,923.06x = 139,859,740,137.52
  5. Step 5: Solve for x
    x = 139,859,740,137.52/489,923.06
  6. Step 6: Final answer
    x = 285,472.87

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1.5x scale

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.