Home / 1,379,683.95-2,068,830.41-419,955.45

Finding the Fourth Proportional to 1,379,683.95, 2,068,830.41 and 419,955.45

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Solution

The fourth proportional to 1,379,683.95, 2,068,830.41 and 419,955.45 is: 629,721.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,683.95 : 2,068,830.41 = 419,955.45 : x
  2. Step 2: Convert to fraction form
    1,379,683.95/2,068,830.41 = 419,955.45/x
  3. Step 3: Cross multiply
    1,379,683.95x = 2,068,830.41 × 419,955.45
  4. Step 4: Simplify right side
    1,379,683.95x = 868,816,605,805.24
  5. Step 5: Solve for x
    x = 868,816,605,805.24/1,379,683.95
  6. Step 6: Final answer
    x = 629,721.47

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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.