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Finding the Fourth Proportional to 492,843.60, 738,228.60 and 409,899.60

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Solution

The fourth proportional to 492,843.60, 738,228.60 and 409,899.60 is: 613,987.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,843.60 : 738,228.60 = 409,899.60 : x
  2. Step 2: Convert to fraction form
    492,843.60/738,228.60 = 409,899.60/x
  3. Step 3: Cross multiply
    492,843.60x = 738,228.60 × 409,899.60
  4. Step 4: Simplify right side
    492,843.60x = 302,599,607,848.56
  5. Step 5: Solve for x
    x = 302,599,607,848.56/492,843.60
  6. Step 6: Final answer
    x = 613,987.09

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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.