Home / 1,308,419.49-1,805,354.13-764,450.10

Finding the Fourth Proportional to 1,308,419.49, 1,805,354.13 and 764,450.10

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Solution

The fourth proportional to 1,308,419.49, 1,805,354.13 and 764,450.10 is: 1,054,786.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,419.49 : 1,805,354.13 = 764,450.10 : x
  2. Step 2: Convert to fraction form
    1,308,419.49/1,805,354.13 = 764,450.10/x
  3. Step 3: Cross multiply
    1,308,419.49x = 1,805,354.13 × 764,450.10
  4. Step 4: Simplify right side
    1,308,419.49x = 1,380,103,145,213.91
  5. Step 5: Solve for x
    x = 1,380,103,145,213.91/1,308,419.49
  6. Step 6: Final answer
    x = 1,054,786.45

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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.