Home / 1,188,222.21-1,779,751.58-731,421.09

Finding the Fourth Proportional to 1,188,222.21, 1,779,751.58 and 731,421.09

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Solution

The fourth proportional to 1,188,222.21, 1,779,751.58 and 731,421.09 is: 1,095,542.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,222.21 : 1,779,751.58 = 731,421.09 : x
  2. Step 2: Convert to fraction form
    1,188,222.21/1,779,751.58 = 731,421.09/x
  3. Step 3: Cross multiply
    1,188,222.21x = 1,779,751.58 × 731,421.09
  4. Step 4: Simplify right side
    1,188,222.21x = 1,301,747,836,915.72
  5. Step 5: Solve for x
    x = 1,301,747,836,915.72/1,188,222.21
  6. Step 6: Final answer
    x = 1,095,542.42

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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.