Home / 1,375,890.81-1,898,776.82-764,053.81

Finding the Fourth Proportional to 1,375,890.81, 1,898,776.82 and 764,053.81

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Solution

The fourth proportional to 1,375,890.81, 1,898,776.82 and 764,053.81 is: 1,054,420.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,890.81 : 1,898,776.82 = 764,053.81 : x
  2. Step 2: Convert to fraction form
    1,375,890.81/1,898,776.82 = 764,053.81/x
  3. Step 3: Cross multiply
    1,375,890.81x = 1,898,776.82 × 764,053.81
  4. Step 4: Simplify right side
    1,375,890.81x = 1,450,767,669,362.69
  5. Step 5: Solve for x
    x = 1,450,767,669,362.69/1,375,890.81
  6. Step 6: Final answer
    x = 1,054,420.64

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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.