Home / 1,377,281.80-2,065,922.70-430,942.60

Finding the Fourth Proportional to 1,377,281.80, 2,065,922.70 and 430,942.60

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Solution

The fourth proportional to 1,377,281.80, 2,065,922.70 and 430,942.60 is: 646,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,281.80 : 2,065,922.70 = 430,942.60 : x
  2. Step 2: Convert to fraction form
    1,377,281.80/2,065,922.70 = 430,942.60/x
  3. Step 3: Cross multiply
    1,377,281.80x = 2,065,922.70 × 430,942.60
  4. Step 4: Simplify right side
    1,377,281.80x = 890,294,099,737.02
  5. Step 5: Solve for x
    x = 890,294,099,737.02/1,377,281.80
  6. Step 6: Final answer
    x = 646,413.90

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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.