Home / 1,261,504.98-1,892,558.78-420,064.02

Finding the Fourth Proportional to 1,261,504.98, 1,892,558.78 and 420,064.02

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Solution

The fourth proportional to 1,261,504.98, 1,892,558.78 and 420,064.02 is: 630,196.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,504.98 : 1,892,558.78 = 420,064.02 : x
  2. Step 2: Convert to fraction form
    1,261,504.98/1,892,558.78 = 420,064.02/x
  3. Step 3: Cross multiply
    1,261,504.98x = 1,892,558.78 × 420,064.02
  4. Step 4: Simplify right side
    1,261,504.98x = 794,995,849,213.10
  5. Step 5: Solve for x
    x = 794,995,849,213.10/1,261,504.98
  6. Step 6: Final answer
    x = 630,196.36

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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.