Home / 860,119.38-1,290,334.59-354,399.03

Finding the Fourth Proportional to 860,119.38, 1,290,334.59 and 354,399.03

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Solution

The fourth proportional to 860,119.38, 1,290,334.59 and 354,399.03 is: 531,662.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,119.38 : 1,290,334.59 = 354,399.03 : x
  2. Step 2: Convert to fraction form
    860,119.38/1,290,334.59 = 354,399.03/x
  3. Step 3: Cross multiply
    860,119.38x = 1,290,334.59 × 354,399.03
  4. Step 4: Simplify right side
    860,119.38x = 457,293,327,071.45
  5. Step 5: Solve for x
    x = 457,293,327,071.45/860,119.38
  6. Step 6: Final answer
    x = 531,662.62

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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.