Home / 1,225,276.80-1,837,915.20-665,404.80

Finding the Fourth Proportional to 1,225,276.80, 1,837,915.20 and 665,404.80

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Solution

The fourth proportional to 1,225,276.80, 1,837,915.20 and 665,404.80 is: 998,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,276.80 : 1,837,915.20 = 665,404.80 : x
  2. Step 2: Convert to fraction form
    1,225,276.80/1,837,915.20 = 665,404.80/x
  3. Step 3: Cross multiply
    1,225,276.80x = 1,837,915.20 × 665,404.80
  4. Step 4: Simplify right side
    1,225,276.80x = 1,222,957,596,072.96
  5. Step 5: Solve for x
    x = 1,222,957,596,072.96/1,225,276.80
  6. Step 6: Final answer
    x = 998,107.20

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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.