Home / 1,420,678.70-2,131,858.79-522,751.00

Finding the Fourth Proportional to 1,420,678.70, 2,131,858.79 and 522,751.00

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Solution

The fourth proportional to 1,420,678.70, 2,131,858.79 and 522,751.00 is: 784,435.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,678.70 : 2,131,858.79 = 522,751.00 : x
  2. Step 2: Convert to fraction form
    1,420,678.70/2,131,858.79 = 522,751.00/x
  3. Step 3: Cross multiply
    1,420,678.70x = 2,131,858.79 × 522,751.00
  4. Step 4: Simplify right side
    1,420,678.70x = 1,114,431,310,308.52
  5. Step 5: Solve for x
    x = 1,114,431,310,308.52/1,420,678.70
  6. Step 6: Final answer
    x = 784,435.85

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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.