Finding the Fourth Proportional to 1,205,673.12, 1,663,072.07 and 715,295.48
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Solution
The fourth proportional to 1,205,673.12, 1,663,072.07 and 715,295.48 is: 986,658.74
Step by Step Solution
- Step 1: Write the proportion equation
1,205,673.12 : 1,663,072.07 = 715,295.48 : x - Step 2: Convert to fraction form
1,205,673.12/1,663,072.07 = 715,295.48/x - Step 3: Cross multiply
1,205,673.12x = 1,663,072.07 × 715,295.48 - Step 4: Simplify right side
1,205,673.12x = 1,189,587,922,693.41 - Step 5: Solve for x
x = 1,189,587,922,693.41/1,205,673.12 - Step 6: Final answer
x = 986,658.74
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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.