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Finding the Fourth Proportional to 918,375.60, 1,286,775.60 and 918,375.60

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Solution

The fourth proportional to 918,375.60, 1,286,775.60 and 918,375.60 is: 1,286,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,375.60 : 1,286,775.60 = 918,375.60 : x
  2. Step 2: Convert to fraction form
    918,375.60/1,286,775.60 = 918,375.60/x
  3. Step 3: Cross multiply
    918,375.60x = 1,286,775.60 × 918,375.60
  4. Step 4: Simplify right side
    918,375.60x = 1,181,743,313,715.36
  5. Step 5: Solve for x
    x = 1,181,743,313,715.36/918,375.60
  6. Step 6: Final answer
    x = 1,286,775.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.