Finding the Fourth Proportional to 1,153,685.63, 1,730,971.62 and 812,456.53
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Solution
The fourth proportional to 1,153,685.63, 1,730,971.62 and 812,456.53 is: 1,218,996.88
Step by Step Solution
- Step 1: Write the proportion equation
1,153,685.63 : 1,730,971.62 = 812,456.53 : x - Step 2: Convert to fraction form
1,153,685.63/1,730,971.62 = 812,456.53/x - Step 3: Cross multiply
1,153,685.63x = 1,730,971.62 × 812,456.53 - Step 4: Simplify right side
1,153,685.63x = 1,406,339,191,586.25 - Step 5: Solve for x
x = 1,406,339,191,586.25/1,153,685.63 - Step 6: Final answer
x = 1,218,996.88
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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.