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Finding the Fourth Proportional to 3,379,761.60, 5,069,973.60 and 983,630.40

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Solution

The fourth proportional to 3,379,761.60, 5,069,973.60 and 983,630.40 is: 1,475,541.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379,761.60 : 5,069,973.60 = 983,630.40 : x
  2. Step 2: Convert to fraction form
    3,379,761.60/5,069,973.60 = 983,630.40/x
  3. Step 3: Cross multiply
    3,379,761.60x = 5,069,973.60 × 983,630.40
  4. Step 4: Simplify right side
    3,379,761.60x = 4,986,980,160,157.44
  5. Step 5: Solve for x
    x = 4,986,980,160,157.44/3,379,761.60
  6. Step 6: Final answer
    x = 1,475,541.99

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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.