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Finding the Fourth Proportional to 448,145.60, 670,274.40 and 401,100.80

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Solution

The fourth proportional to 448,145.60, 670,274.40 and 401,100.80 is: 599,911.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,145.60 : 670,274.40 = 401,100.80 : x
  2. Step 2: Convert to fraction form
    448,145.60/670,274.40 = 401,100.80/x
  3. Step 3: Cross multiply
    448,145.60x = 670,274.40 × 401,100.80
  4. Step 4: Simplify right side
    448,145.60x = 268,847,598,059.52
  5. Step 5: Solve for x
    x = 268,847,598,059.52/448,145.60
  6. Step 6: Final answer
    x = 599,911.27

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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.