Home / 860,245.65-1,290,285.10-261,212.08

Finding the Fourth Proportional to 860,245.65, 1,290,285.10 and 261,212.08

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Solution

The fourth proportional to 860,245.65, 1,290,285.10 and 261,212.08 is: 391,792.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,245.65 : 1,290,285.10 = 261,212.08 : x
  2. Step 2: Convert to fraction form
    860,245.65/1,290,285.10 = 261,212.08/x
  3. Step 3: Cross multiply
    860,245.65x = 1,290,285.10 × 261,212.08
  4. Step 4: Simplify right side
    860,245.65x = 337,038,047,006.52
  5. Step 5: Solve for x
    x = 337,038,047,006.52/860,245.65
  6. Step 6: Final answer
    x = 391,792.79

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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.