Home / 1,219,723.50-1,683,218.43-742,795.50

Finding the Fourth Proportional to 1,219,723.50, 1,683,218.43 and 742,795.50

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Solution

The fourth proportional to 1,219,723.50, 1,683,218.43 and 742,795.50 is: 1,025,057.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,723.50 : 1,683,218.43 = 742,795.50 : x
  2. Step 2: Convert to fraction form
    1,219,723.50/1,683,218.43 = 742,795.50/x
  3. Step 3: Cross multiply
    1,219,723.50x = 1,683,218.43 × 742,795.50
  4. Step 4: Simplify right side
    1,219,723.50x = 1,250,287,075,321.07
  5. Step 5: Solve for x
    x = 1,250,287,075,321.07/1,219,723.50
  6. Step 6: Final answer
    x = 1,025,057.79

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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.