Home / 1,323,276.80-1,984,915.20-1,261,068.80

Finding the Fourth Proportional to 1,323,276.80, 1,984,915.20 and 1,261,068.80

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Solution

The fourth proportional to 1,323,276.80, 1,984,915.20 and 1,261,068.80 is: 1,891,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,276.80 : 1,984,915.20 = 1,261,068.80 : x
  2. Step 2: Convert to fraction form
    1,323,276.80/1,984,915.20 = 1,261,068.80/x
  3. Step 3: Cross multiply
    1,323,276.80x = 1,984,915.20 × 1,261,068.80
  4. Step 4: Simplify right side
    1,323,276.80x = 2,503,114,629,365.76
  5. Step 5: Solve for x
    x = 2,503,114,629,365.76/1,323,276.80
  6. Step 6: Final answer
    x = 1,891,603.20

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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.