Finding the Fourth Proportional to 1,427,329.15, 1,969,705.15 and 815,668.99
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Solution
The fourth proportional to 1,427,329.15, 1,969,705.15 and 815,668.99 is: 1,125,618.02
Step by Step Solution
- Step 1: Write the proportion equation
1,427,329.15 : 1,969,705.15 = 815,668.99 : x - Step 2: Convert to fraction form
1,427,329.15/1,969,705.15 = 815,668.99/x - Step 3: Cross multiply
1,427,329.15x = 1,969,705.15 × 815,668.99 - Step 4: Simplify right side
1,427,329.15x = 1,606,627,403,334.86 - Step 5: Solve for x
x = 1,606,627,403,334.86/1,427,329.15 - Step 6: Final answer
x = 1,125,618.02
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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.