Home / 489,982.40-734,584.80-268,366.40

Finding the Fourth Proportional to 489,982.40, 734,584.80 and 268,366.40

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Solution

The fourth proportional to 489,982.40, 734,584.80 and 268,366.40 is: 402,336.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,982.40 : 734,584.80 = 268,366.40 : x
  2. Step 2: Convert to fraction form
    489,982.40/734,584.80 = 268,366.40/x
  3. Step 3: Cross multiply
    489,982.40x = 734,584.80 × 268,366.40
  4. Step 4: Simplify right side
    489,982.40x = 197,137,878,270.72
  5. Step 5: Solve for x
    x = 197,137,878,270.72/489,982.40
  6. Step 6: Final answer
    x = 402,336.65

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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.