Home / 860,242.48-1,290,280.34-261,208.90

Finding the Fourth Proportional to 860,242.48, 1,290,280.34 and 261,208.90

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Solution

The fourth proportional to 860,242.48, 1,290,280.34 and 261,208.90 is: 391,788.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,242.48 : 1,290,280.34 = 261,208.90 : x
  2. Step 2: Convert to fraction form
    860,242.48/1,290,280.34 = 261,208.90/x
  3. Step 3: Cross multiply
    860,242.48x = 1,290,280.34 × 261,208.90
  4. Step 4: Simplify right side
    860,242.48x = 337,032,709,099.60
  5. Step 5: Solve for x
    x = 337,032,709,099.60/860,242.48
  6. Step 6: Final answer
    x = 391,788.03

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1.5x scale

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.