Home / 1,162,173.51-1,603,788.12-645,928.56

Finding the Fourth Proportional to 1,162,173.51, 1,603,788.12 and 645,928.56

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Solution

The fourth proportional to 1,162,173.51, 1,603,788.12 and 645,928.56 is: 891,375.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162,173.51 : 1,603,788.12 = 645,928.56 : x
  2. Step 2: Convert to fraction form
    1,162,173.51/1,603,788.12 = 645,928.56/x
  3. Step 3: Cross multiply
    1,162,173.51x = 1,603,788.12 × 645,928.56
  4. Step 4: Simplify right side
    1,162,173.51x = 1,035,932,550,896.71
  5. Step 5: Solve for x
    x = 1,035,932,550,896.71/1,162,173.51
  6. Step 6: Final answer
    x = 891,375.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.