Home / 1,161,867.03-1,603,344.51-645,607.57

Finding the Fourth Proportional to 1,161,867.03, 1,603,344.51 and 645,607.57

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Solution

The fourth proportional to 1,161,867.03, 1,603,344.51 and 645,607.57 is: 890,920.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,867.03 : 1,603,344.51 = 645,607.57 : x
  2. Step 2: Convert to fraction form
    1,161,867.03/1,603,344.51 = 645,607.57/x
  3. Step 3: Cross multiply
    1,161,867.03x = 1,603,344.51 × 645,607.57
  4. Step 4: Simplify right side
    1,161,867.03x = 1,035,131,352,973.94
  5. Step 5: Solve for x
    x = 1,035,131,352,973.94/1,161,867.03
  6. Step 6: Final answer
    x = 890,920.67

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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.