Home / 1,311,765.36-1,810,036.44-738,769.20

Finding the Fourth Proportional to 1,311,765.36, 1,810,036.44 and 738,769.20

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Solution

The fourth proportional to 1,311,765.36, 1,810,036.44 and 738,769.20 is: 1,019,389.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,765.36 : 1,810,036.44 = 738,769.20 : x
  2. Step 2: Convert to fraction form
    1,311,765.36/1,810,036.44 = 738,769.20/x
  3. Step 3: Cross multiply
    1,311,765.36x = 1,810,036.44 × 738,769.20
  4. Step 4: Simplify right side
    1,311,765.36x = 1,337,199,172,749.65
  5. Step 5: Solve for x
    x = 1,337,199,172,749.65/1,311,765.36
  6. Step 6: Final answer
    x = 1,019,389.00

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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.