Home / 1,094,919.40-1,641,212.70-420,740.20

Finding the Fourth Proportional to 1,094,919.40, 1,641,212.70 and 420,740.20

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Solution

The fourth proportional to 1,094,919.40, 1,641,212.70 and 420,740.20 is: 630,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094,919.40 : 1,641,212.70 = 420,740.20 : x
  2. Step 2: Convert to fraction form
    1,094,919.40/1,641,212.70 = 420,740.20/x
  3. Step 3: Cross multiply
    1,094,919.40x = 1,641,212.70 × 420,740.20
  4. Step 4: Simplify right side
    1,094,919.40x = 690,524,159,640.54
  5. Step 5: Solve for x
    x = 690,524,159,640.54/1,094,919.40
  6. Step 6: Final answer
    x = 630,662.09

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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.