Finding the Fourth Proportional to 1,422,385.23, 2,128,328.97 and 854,112.39
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Solution
The fourth proportional to 1,422,385.23, 2,128,328.97 and 854,112.39 is: 1,278,016.75
Step by Step Solution
- Step 1: Write the proportion equation
1,422,385.23 : 2,128,328.97 = 854,112.39 : x - Step 2: Convert to fraction form
1,422,385.23/2,128,328.97 = 854,112.39/x - Step 3: Cross multiply
1,422,385.23x = 2,128,328.97 × 854,112.39 - Step 4: Simplify right side
1,422,385.23x = 1,817,832,143,272.94 - Step 5: Solve for x
x = 1,817,832,143,272.94/1,422,385.23 - Step 6: Final answer
x = 1,278,016.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.