Finding the Fourth Proportional to 1,117,979.93, 1,542,951.78 and 634,701.53
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Solution
The fourth proportional to 1,117,979.93, 1,542,951.78 and 634,701.53 is: 875,967.30
Step by Step Solution
- Step 1: Write the proportion equation
1,117,979.93 : 1,542,951.78 = 634,701.53 : x - Step 2: Convert to fraction form
1,117,979.93/1,542,951.78 = 634,701.53/x - Step 3: Cross multiply
1,117,979.93x = 1,542,951.78 × 634,701.53 - Step 4: Simplify right side
1,117,979.93x = 979,313,855,482.22 - Step 5: Solve for x
x = 979,313,855,482.22/1,117,979.93 - Step 6: Final answer
x = 875,967.30
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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.