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Finding the Fourth Proportional to 489,518.83, 734,144.59 and 134,448.45

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Solution

The fourth proportional to 489,518.83, 734,144.59 and 134,448.45 is: 201,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,518.83 : 734,144.59 = 134,448.45 : x
  2. Step 2: Convert to fraction form
    489,518.83/734,144.59 = 134,448.45/x
  3. Step 3: Cross multiply
    489,518.83x = 734,144.59 × 134,448.45
  4. Step 4: Simplify right side
    489,518.83x = 98,704,602,201.39
  5. Step 5: Solve for x
    x = 98,704,602,201.39/489,518.83
  6. Step 6: Final answer
    x = 201,635.97

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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.