Home / 1,284,589.15-1,927,313.88-420,063.93

Finding the Fourth Proportional to 1,284,589.15, 1,927,313.88 and 420,063.93

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Solution

The fourth proportional to 1,284,589.15, 1,927,313.88 and 420,063.93 is: 630,236.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,589.15 : 1,927,313.88 = 420,063.93 : x
  2. Step 2: Convert to fraction form
    1,284,589.15/1,927,313.88 = 420,063.93/x
  3. Step 3: Cross multiply
    1,284,589.15x = 1,927,313.88 × 420,063.93
  4. Step 4: Simplify right side
    1,284,589.15x = 809,595,042,776.35
  5. Step 5: Solve for x
    x = 809,595,042,776.35/1,284,589.15
  6. Step 6: Final answer
    x = 630,236.56

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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.