Home / 860,625.70-1,290,938.55-775,004.65

Finding the Fourth Proportional to 860,625.70, 1,290,938.55 and 775,004.65

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Solution

The fourth proportional to 860,625.70, 1,290,938.55 and 775,004.65 is: 1,162,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,625.70 : 1,290,938.55 = 775,004.65 : x
  2. Step 2: Convert to fraction form
    860,625.70/1,290,938.55 = 775,004.65/x
  3. Step 3: Cross multiply
    860,625.70x = 1,290,938.55 × 775,004.65
  4. Step 4: Simplify right side
    860,625.70x = 1,000,483,379,114.26
  5. Step 5: Solve for x
    x = 1,000,483,379,114.26/860,625.70
  6. Step 6: Final answer
    x = 1,162,506.98

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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.