Home / 1,377,003.60-2,065,505.40-430,372.80

Finding the Fourth Proportional to 1,377,003.60, 2,065,505.40 and 430,372.80

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Solution

The fourth proportional to 1,377,003.60, 2,065,505.40 and 430,372.80 is: 645,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,003.60 : 2,065,505.40 = 430,372.80 : x
  2. Step 2: Convert to fraction form
    1,377,003.60/2,065,505.40 = 430,372.80/x
  3. Step 3: Cross multiply
    1,377,003.60x = 2,065,505.40 × 430,372.80
  4. Step 4: Simplify right side
    1,377,003.60x = 888,937,342,413.12
  5. Step 5: Solve for x
    x = 888,937,342,413.12/1,377,003.60
  6. Step 6: Final answer
    x = 645,559.20

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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.