Home / 1,295,109.84-1,788,379.56-812,504.64

Finding the Fourth Proportional to 1,295,109.84, 1,788,379.56 and 812,504.64

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Solution

The fourth proportional to 1,295,109.84, 1,788,379.56 and 812,504.64 is: 1,121,964.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,109.84 : 1,788,379.56 = 812,504.64 : x
  2. Step 2: Convert to fraction form
    1,295,109.84/1,788,379.56 = 812,504.64/x
  3. Step 3: Cross multiply
    1,295,109.84x = 1,788,379.56 × 812,504.64
  4. Step 4: Simplify right side
    1,295,109.84x = 1,453,066,690,581.16
  5. Step 5: Solve for x
    x = 1,453,066,690,581.16/1,295,109.84
  6. Step 6: Final answer
    x = 1,121,964.06

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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.