Home / 1,273,059.21-1,909,648.49-420,205.22

Finding the Fourth Proportional to 1,273,059.21, 1,909,648.49 and 420,205.22

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Solution

The fourth proportional to 1,273,059.21, 1,909,648.49 and 420,205.22 is: 630,327.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,059.21 : 1,909,648.49 = 420,205.22 : x
  2. Step 2: Convert to fraction form
    1,273,059.21/1,909,648.49 = 420,205.22/x
  3. Step 3: Cross multiply
    1,273,059.21x = 1,909,648.49 × 420,205.22
  4. Step 4: Simplify right side
    1,273,059.21x = 802,444,252,213.85
  5. Step 5: Solve for x
    x = 802,444,252,213.85/1,273,059.21
  6. Step 6: Final answer
    x = 630,327.52

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1.5x scale

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.