Finding the Fourth Proportional to 1,117,498.68, 1,673,579.88 and 643,186.98
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Solution
The fourth proportional to 1,117,498.68, 1,673,579.88 and 643,186.98 is: 963,244.80
Step by Step Solution
- Step 1: Write the proportion equation
1,117,498.68 : 1,673,579.88 = 643,186.98 : x - Step 2: Convert to fraction form
1,117,498.68/1,673,579.88 = 643,186.98/x - Step 3: Cross multiply
1,117,498.68x = 1,673,579.88 × 643,186.98 - Step 4: Simplify right side
1,117,498.68x = 1,076,424,788,805.96 - Step 5: Solve for x
x = 1,076,424,788,805.96/1,117,498.68 - Step 6: Final answer
x = 963,244.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.