Home / 1,203,856.40-1,805,971.44-405,075.68

Finding the Fourth Proportional to 1,203,856.40, 1,805,971.44 and 405,075.68

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Solution

The fourth proportional to 1,203,856.40, 1,805,971.44 and 405,075.68 is: 607,676.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,856.40 : 1,805,971.44 = 405,075.68 : x
  2. Step 2: Convert to fraction form
    1,203,856.40/1,805,971.44 = 405,075.68/x
  3. Step 3: Cross multiply
    1,203,856.40x = 1,805,971.44 × 405,075.68
  4. Step 4: Simplify right side
    1,203,856.40x = 731,555,118,538.74
  5. Step 5: Solve for x
    x = 731,555,118,538.74/1,203,856.40
  6. Step 6: Final answer
    x = 607,676.40

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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.