Finding the Fourth Proportional to 1,618,349.12, 2,227,329.60 and 1,187,947.52
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Solution
The fourth proportional to 1,618,349.12, 2,227,329.60 and 1,187,947.52 is: 1,634,969.02
Step by Step Solution
- Step 1: Write the proportion equation
1,618,349.12 : 2,227,329.60 = 1,187,947.52 : x - Step 2: Convert to fraction form
1,618,349.12/2,227,329.60 = 1,187,947.52/x - Step 3: Cross multiply
1,618,349.12x = 2,227,329.60 × 1,187,947.52 - Step 4: Simplify right side
1,618,349.12x = 2,645,950,674,542.59 - Step 5: Solve for x
x = 2,645,950,674,542.59/1,618,349.12 - Step 6: Final answer
x = 1,634,969.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.