Home / 860,445.99-1,290,671.42-261,412.11

Finding the Fourth Proportional to 860,445.99, 1,290,671.42 and 261,412.11

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Solution

The fourth proportional to 860,445.99, 1,290,671.42 and 261,412.11 is: 392,118.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,445.99 : 1,290,671.42 = 261,412.11 : x
  2. Step 2: Convert to fraction form
    860,445.99/1,290,671.42 = 261,412.11/x
  3. Step 3: Cross multiply
    860,445.99x = 1,290,671.42 × 261,412.11
  4. Step 4: Simplify right side
    860,445.99x = 337,397,137,911.84
  5. Step 5: Solve for x
    x = 337,397,137,911.84/860,445.99
  6. Step 6: Final answer
    x = 392,118.90

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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.