Home / 1,238,362.80-1,709,127.46-755,208.20

Finding the Fourth Proportional to 1,238,362.80, 1,709,127.46 and 755,208.20

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Solution

The fourth proportional to 1,238,362.80, 1,709,127.46 and 755,208.20 is: 1,042,301.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,362.80 : 1,709,127.46 = 755,208.20 : x
  2. Step 2: Convert to fraction form
    1,238,362.80/1,709,127.46 = 755,208.20/x
  3. Step 3: Cross multiply
    1,238,362.80x = 1,709,127.46 × 755,208.20
  4. Step 4: Simplify right side
    1,238,362.80x = 1,290,747,073,047.08
  5. Step 5: Solve for x
    x = 1,290,747,073,047.08/1,238,362.80
  6. Step 6: Final answer
    x = 1,042,301.23

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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.