Home / 489,379.14-733,831.39-287,041.37

Finding the Fourth Proportional to 489,379.14, 733,831.39 and 287,041.37

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Solution

The fourth proportional to 489,379.14, 733,831.39 and 287,041.37 is: 430,422.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,379.14 : 733,831.39 = 287,041.37 : x
  2. Step 2: Convert to fraction form
    489,379.14/733,831.39 = 287,041.37/x
  3. Step 3: Cross multiply
    489,379.14x = 733,831.39 × 287,041.37
  4. Step 4: Simplify right side
    489,379.14x = 210,639,967,534.60
  5. Step 5: Solve for x
    x = 210,639,967,534.60/489,379.14
  6. Step 6: Final answer
    x = 430,422.86

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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.