Home / 745,399.40-1,118,108.82-212,937.80

Finding the Fourth Proportional to 745,399.40, 1,118,108.82 and 212,937.80

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Solution

The fourth proportional to 745,399.40, 1,118,108.82 and 212,937.80 is: 319,409.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,399.40 : 1,118,108.82 = 212,937.80 : x
  2. Step 2: Convert to fraction form
    745,399.40/1,118,108.82 = 212,937.80/x
  3. Step 3: Cross multiply
    745,399.40x = 1,118,108.82 × 212,937.80
  4. Step 4: Simplify right side
    745,399.40x = 238,087,632,291.40
  5. Step 5: Solve for x
    x = 238,087,632,291.40/745,399.40
  6. Step 6: Final answer
    x = 319,409.48

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