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Finding the Fourth Proportional to 440,858.40, 660,412.80 and 240,885.60

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Solution

The fourth proportional to 440,858.40, 660,412.80 and 240,885.60 is: 360,850.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,858.40 : 660,412.80 = 240,885.60 : x
  2. Step 2: Convert to fraction form
    440,858.40/660,412.80 = 240,885.60/x
  3. Step 3: Cross multiply
    440,858.40x = 660,412.80 × 240,885.60
  4. Step 4: Simplify right side
    440,858.40x = 159,083,933,575.68
  5. Step 5: Solve for x
    x = 159,083,933,575.68/440,858.40
  6. Step 6: Final answer
    x = 360,850.41

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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.