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Finding the Fourth Proportional to 489,507.74, 734,120.49 and 134,533.34

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Solution

The fourth proportional to 489,507.74, 734,120.49 and 134,533.34 is: 201,761.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,507.74 : 734,120.49 = 134,533.34 : x
  2. Step 2: Convert to fraction form
    489,507.74/734,120.49 = 134,533.34/x
  3. Step 3: Cross multiply
    489,507.74x = 734,120.49 × 134,533.34
  4. Step 4: Simplify right side
    489,507.74x = 98,763,681,482.14
  5. Step 5: Solve for x
    x = 98,763,681,482.14/489,507.74
  6. Step 6: Final answer
    x = 201,761.23

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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.