Home / 1,285,206.20-1,927,809.30-812,814.20

Finding the Fourth Proportional to 1,285,206.20, 1,927,809.30 and 812,814.20

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Solution

The fourth proportional to 1,285,206.20, 1,927,809.30 and 812,814.20 is: 1,219,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,206.20 : 1,927,809.30 = 812,814.20 : x
  2. Step 2: Convert to fraction form
    1,285,206.20/1,927,809.30 = 812,814.20/x
  3. Step 3: Cross multiply
    1,285,206.20x = 1,927,809.30 × 812,814.20
  4. Step 4: Simplify right side
    1,285,206.20x = 1,566,950,773,932.06
  5. Step 5: Solve for x
    x = 1,566,950,773,932.06/1,285,206.20
  6. Step 6: Final answer
    x = 1,219,221.30

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Similar ratio
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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.