Home / 414,327.80-621,831.90-214,709.24

Finding the Fourth Proportional to 414,327.80, 621,831.90 and 214,709.24

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Solution

The fourth proportional to 414,327.80, 621,831.90 and 214,709.24 is: 322,240.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,327.80 : 621,831.90 = 214,709.24 : x
  2. Step 2: Convert to fraction form
    414,327.80/621,831.90 = 214,709.24/x
  3. Step 3: Cross multiply
    414,327.80x = 621,831.90 × 214,709.24
  4. Step 4: Simplify right side
    414,327.80x = 133,513,054,656.76
  5. Step 5: Solve for x
    x = 133,513,054,656.76/414,327.80
  6. Step 6: Final answer
    x = 322,240.16

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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.