Home / 1,147,914.78-1,586,307.20-860,936.64

Finding the Fourth Proportional to 1,147,914.78, 1,586,307.20 and 860,936.64

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Solution

The fourth proportional to 1,147,914.78, 1,586,307.20 and 860,936.64 is: 1,189,731.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,914.78 : 1,586,307.20 = 860,936.64 : x
  2. Step 2: Convert to fraction form
    1,147,914.78/1,586,307.20 = 860,936.64/x
  3. Step 3: Cross multiply
    1,147,914.78x = 1,586,307.20 × 860,936.64
  4. Step 4: Simplify right side
    1,147,914.78x = 1,365,709,990,775.81
  5. Step 5: Solve for x
    x = 1,365,709,990,775.81/1,147,914.78
  6. Step 6: Final answer
    x = 1,189,731.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.