Home / 1,266,243.75-1,899,365.63-379,779.75

Finding the Fourth Proportional to 1,266,243.75, 1,899,365.63 and 379,779.75

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Solution

The fourth proportional to 1,266,243.75, 1,899,365.63 and 379,779.75 is: 569,669.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,243.75 : 1,899,365.63 = 379,779.75 : x
  2. Step 2: Convert to fraction form
    1,266,243.75/1,899,365.63 = 379,779.75/x
  3. Step 3: Cross multiply
    1,266,243.75x = 1,899,365.63 × 379,779.75
  4. Step 4: Simplify right side
    1,266,243.75x = 721,340,602,221.09
  5. Step 5: Solve for x
    x = 721,340,602,221.09/1,266,243.75
  6. Step 6: Final answer
    x = 569,669.63

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Double scale
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Similar ratio
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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.