Home / 489,520.83-734,147.58-134,450.46

Finding the Fourth Proportional to 489,520.83, 734,147.58 and 134,450.46

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Solution

The fourth proportional to 489,520.83, 734,147.58 and 134,450.46 is: 201,638.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,520.83 : 734,147.58 = 134,450.46 : x
  2. Step 2: Convert to fraction form
    489,520.83/734,147.58 = 134,450.46/x
  3. Step 3: Cross multiply
    489,520.83x = 734,147.58 × 134,450.46
  4. Step 4: Simplify right side
    489,520.83x = 98,706,479,838.89
  5. Step 5: Solve for x
    x = 98,706,479,838.89/489,520.83
  6. Step 6: Final answer
    x = 201,638.98

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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.