Finding the Fourth Proportional to 1,207,681.50, 1,666,596.66 and 663,851.18
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Solution
The fourth proportional to 1,207,681.50, 1,666,596.66 and 663,851.18 is: 916,112.53
Step by Step Solution
- Step 1: Write the proportion equation
1,207,681.50 : 1,666,596.66 = 663,851.18 : x - Step 2: Convert to fraction form
1,207,681.50/1,666,596.66 = 663,851.18/x - Step 3: Cross multiply
1,207,681.50x = 1,666,596.66 × 663,851.18 - Step 4: Simplify right side
1,207,681.50x = 1,106,372,159,325.06 - Step 5: Solve for x
x = 1,106,372,159,325.06/1,207,681.50 - Step 6: Final answer
x = 916,112.53
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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.