Home / 1,149,415.20-1,724,122.80-439,466.40

Finding the Fourth Proportional to 1,149,415.20, 1,724,122.80 and 439,466.40

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Solution

The fourth proportional to 1,149,415.20, 1,724,122.80 and 439,466.40 is: 659,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,415.20 : 1,724,122.80 = 439,466.40 : x
  2. Step 2: Convert to fraction form
    1,149,415.20/1,724,122.80 = 439,466.40/x
  3. Step 3: Cross multiply
    1,149,415.20x = 1,724,122.80 × 439,466.40
  4. Step 4: Simplify right side
    1,149,415.20x = 757,694,040,073.92
  5. Step 5: Solve for x
    x = 757,694,040,073.92/1,149,415.20
  6. Step 6: Final answer
    x = 659,199.60

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Double scale
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Similar ratio
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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.