Home / 1,261,762.92-1,892,945.50-420,321.64

Finding the Fourth Proportional to 1,261,762.92, 1,892,945.50 and 420,321.64

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Solution

The fourth proportional to 1,261,762.92, 1,892,945.50 and 420,321.64 is: 630,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,762.92 : 1,892,945.50 = 420,321.64 : x
  2. Step 2: Convert to fraction form
    1,261,762.92/1,892,945.50 = 420,321.64/x
  3. Step 3: Cross multiply
    1,261,762.92x = 1,892,945.50 × 420,321.64
  4. Step 4: Simplify right side
    1,261,762.92x = 795,645,956,990.62
  5. Step 5: Solve for x
    x = 795,645,956,990.62/1,261,762.92
  6. Step 6: Final answer
    x = 630,582.77

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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.