Home / 1,289,647.44-1,779,676-738,344.72

Finding the Fourth Proportional to 1,289,647.44, 1,779,676 and 738,344.72

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Solution

The fourth proportional to 1,289,647.44, 1,779,676 and 738,344.72 is: 1,018,894.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,647.44 : 1,779,676 = 738,344.72 : x
  2. Step 2: Convert to fraction form
    1,289,647.44/1,779,676 = 738,344.72/x
  3. Step 3: Cross multiply
    1,289,647.44x = 1,779,676 × 738,344.72
  4. Step 4: Simplify right side
    1,289,647.44x = 1,314,014,377,910.72
  5. Step 5: Solve for x
    x = 1,314,014,377,910.72/1,289,647.44
  6. Step 6: Final answer
    x = 1,018,894.26

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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.