Home / 890,999.40-1,336,550.30-260,010.60

Finding the Fourth Proportional to 890,999.40, 1,336,550.30 and 260,010.60

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Solution

The fourth proportional to 890,999.40, 1,336,550.30 and 260,010.60 is: 390,030.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,999.40 : 1,336,550.30 = 260,010.60 : x
  2. Step 2: Convert to fraction form
    890,999.40/1,336,550.30 = 260,010.60/x
  3. Step 3: Cross multiply
    890,999.40x = 1,336,550.30 × 260,010.60
  4. Step 4: Simplify right side
    890,999.40x = 347,517,245,433.18
  5. Step 5: Solve for x
    x = 347,517,245,433.18/890,999.40
  6. Step 6: Final answer
    x = 390,030.84

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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.