Home / 1,105,157.09-1,524,558.48-645,971.67

Finding the Fourth Proportional to 1,105,157.09, 1,524,558.48 and 645,971.67

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Solution

The fourth proportional to 1,105,157.09, 1,524,558.48 and 645,971.67 is: 891,114.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,157.09 : 1,524,558.48 = 645,971.67 : x
  2. Step 2: Convert to fraction form
    1,105,157.09/1,524,558.48 = 645,971.67/x
  3. Step 3: Cross multiply
    1,105,157.09x = 1,524,558.48 × 645,971.67
  4. Step 4: Simplify right side
    1,105,157.09x = 984,821,584,915.87
  5. Step 5: Solve for x
    x = 984,821,584,915.87/1,105,157.09
  6. Step 6: Final answer
    x = 891,114.57

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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.