Home / 891,128.54-1,336,670.61-260,047.82

Finding the Fourth Proportional to 891,128.54, 1,336,670.61 and 260,047.82

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Solution

The fourth proportional to 891,128.54, 1,336,670.61 and 260,047.82 is: 390,065.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,128.54 : 1,336,670.61 = 260,047.82 : x
  2. Step 2: Convert to fraction form
    891,128.54/1,336,670.61 = 260,047.82/x
  3. Step 3: Cross multiply
    891,128.54x = 1,336,670.61 × 260,047.82
  4. Step 4: Simplify right side
    891,128.54x = 347,598,278,188.57
  5. Step 5: Solve for x
    x = 347,598,278,188.57/891,128.54
  6. Step 6: Final answer
    x = 390,065.25

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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.