Home / 1,325,409.66-1,988,058.96-426,831.50

Finding the Fourth Proportional to 1,325,409.66, 1,988,058.96 and 426,831.50

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Solution

The fourth proportional to 1,325,409.66, 1,988,058.96 and 426,831.50 is: 640,229.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,409.66 : 1,988,058.96 = 426,831.50 : x
  2. Step 2: Convert to fraction form
    1,325,409.66/1,988,058.96 = 426,831.50/x
  3. Step 3: Cross multiply
    1,325,409.66x = 1,988,058.96 × 426,831.50
  4. Step 4: Simplify right side
    1,325,409.66x = 848,566,192,955.39
  5. Step 5: Solve for x
    x = 848,566,192,955.39/1,325,409.66
  6. Step 6: Final answer
    x = 640,229.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.