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Finding the Fourth Proportional to 911,074.60, 1,364,643.60 and 753,610.60

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Solution

The fourth proportional to 911,074.60, 1,364,643.60 and 753,610.60 is: 1,128,787.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,074.60 : 1,364,643.60 = 753,610.60 : x
  2. Step 2: Convert to fraction form
    911,074.60/1,364,643.60 = 753,610.60/x
  3. Step 3: Cross multiply
    911,074.60x = 1,364,643.60 × 753,610.60
  4. Step 4: Simplify right side
    911,074.60x = 1,028,409,882,182.16
  5. Step 5: Solve for x
    x = 1,028,409,882,182.16/911,074.60
  6. Step 6: Final answer
    x = 1,128,787.79

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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.