Finding the Fourth Proportional to 1,366,919.67, 1,886,270.98 and 816,256.74
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Solution
The fourth proportional to 1,366,919.67, 1,886,270.98 and 816,256.74 is: 1,126,387.63
Step by Step Solution
- Step 1: Write the proportion equation
1,366,919.67 : 1,886,270.98 = 816,256.74 : x - Step 2: Convert to fraction form
1,366,919.67/1,886,270.98 = 816,256.74/x - Step 3: Cross multiply
1,366,919.67x = 1,886,270.98 × 816,256.74 - Step 4: Simplify right side
1,366,919.67x = 1,539,681,407,454.76 - Step 5: Solve for x
x = 1,539,681,407,454.76/1,366,919.67 - Step 6: Final answer
x = 1,126,387.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.