Home / 1,219,173.78-1,682,442.05-675,307.79

Finding the Fourth Proportional to 1,219,173.78, 1,682,442.05 and 675,307.79

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Solution

The fourth proportional to 1,219,173.78, 1,682,442.05 and 675,307.79 is: 931,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,173.78 : 1,682,442.05 = 675,307.79 : x
  2. Step 2: Convert to fraction form
    1,219,173.78/1,682,442.05 = 675,307.79/x
  3. Step 3: Cross multiply
    1,219,173.78x = 1,682,442.05 × 675,307.79
  4. Step 4: Simplify right side
    1,219,173.78x = 1,136,166,210,799.82
  5. Step 5: Solve for x
    x = 1,136,166,210,799.82/1,219,173.78
  6. Step 6: Final answer
    x = 931,914.90

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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.