Home / 1,100,518.40-1,649,817.60-427,059.20

Finding the Fourth Proportional to 1,100,518.40, 1,649,817.60 and 427,059.20

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Solution

The fourth proportional to 1,100,518.40, 1,649,817.60 and 427,059.20 is: 640,216.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,518.40 : 1,649,817.60 = 427,059.20 : x
  2. Step 2: Convert to fraction form
    1,100,518.40/1,649,817.60 = 427,059.20/x
  3. Step 3: Cross multiply
    1,100,518.40x = 1,649,817.60 × 427,059.20
  4. Step 4: Simplify right side
    1,100,518.40x = 704,569,784,401.92
  5. Step 5: Solve for x
    x = 704,569,784,401.92/1,100,518.40
  6. Step 6: Final answer
    x = 640,216.27

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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.