Home / 1,907,181.79-2,631,911.84-1,047,797.40

Finding the Fourth Proportional to 1,907,181.79, 2,631,911.84 and 1,047,797.40

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Solution

The fourth proportional to 1,907,181.79, 2,631,911.84 and 1,047,797.40 is: 1,445,960.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907,181.79 : 2,631,911.84 = 1,047,797.40 : x
  2. Step 2: Convert to fraction form
    1,907,181.79/2,631,911.84 = 1,047,797.40/x
  3. Step 3: Cross multiply
    1,907,181.79x = 2,631,911.84 × 1,047,797.40
  4. Step 4: Simplify right side
    1,907,181.79x = 2,757,710,382,981.22
  5. Step 5: Solve for x
    x = 2,757,710,382,981.22/1,907,181.79
  6. Step 6: Final answer
    x = 1,445,960.94

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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.