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Finding the Fourth Proportional to 489,526.36, 734,155.83 and 134,455.96

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Solution

The fourth proportional to 489,526.36, 734,155.83 and 134,455.96 is: 201,647.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,526.36 : 734,155.83 = 134,455.96 : x
  2. Step 2: Convert to fraction form
    489,526.36/734,155.83 = 134,455.96/x
  3. Step 3: Cross multiply
    489,526.36x = 734,155.83 × 134,455.96
  4. Step 4: Simplify right side
    489,526.36x = 98,711,626,912.25
  5. Step 5: Solve for x
    x = 98,711,626,912.25/489,526.36
  6. Step 6: Final answer
    x = 201,647.21

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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.