Home / 936,745.35-1,405,678.60-860,516.78

Finding the Fourth Proportional to 936,745.35, 1,405,678.60 and 860,516.78

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Solution

The fourth proportional to 936,745.35, 1,405,678.60 and 860,516.78 is: 1,291,290.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,745.35 : 1,405,678.60 = 860,516.78 : x
  2. Step 2: Convert to fraction form
    936,745.35/1,405,678.60 = 860,516.78/x
  3. Step 3: Cross multiply
    936,745.35x = 1,405,678.60 × 860,516.78
  4. Step 4: Simplify right side
    936,745.35x = 1,209,610,024,229.15
  5. Step 5: Solve for x
    x = 1,209,610,024,229.15/936,745.35
  6. Step 6: Final answer
    x = 1,291,290.13

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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.