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Finding the Fourth Proportional to 660,701.26, 911,831.55 and 370,361.98

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Solution

The fourth proportional to 660,701.26, 911,831.55 and 370,361.98 is: 511,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,701.26 : 911,831.55 = 370,361.98 : x
  2. Step 2: Convert to fraction form
    660,701.26/911,831.55 = 370,361.98/x
  3. Step 3: Cross multiply
    660,701.26x = 911,831.55 × 370,361.98
  4. Step 4: Simplify right side
    660,701.26x = 337,707,738,284.47
  5. Step 5: Solve for x
    x = 337,707,738,284.47/660,701.26
  6. Step 6: Final answer
    x = 511,135.30

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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.