Finding the Fourth Proportional to 1,131,851.51, 1,562,176.95 and 648,740.45
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Solution
The fourth proportional to 1,131,851.51, 1,562,176.95 and 648,740.45 is: 895,388.99
Step by Step Solution
- Step 1: Write the proportion equation
1,131,851.51 : 1,562,176.95 = 648,740.45 : x - Step 2: Convert to fraction form
1,131,851.51/1,562,176.95 = 648,740.45/x - Step 3: Cross multiply
1,131,851.51x = 1,562,176.95 × 648,740.45 - Step 4: Simplify right side
1,131,851.51x = 1,013,447,377,522.63 - Step 5: Solve for x
x = 1,013,447,377,522.63/1,131,851.51 - Step 6: Final answer
x = 895,388.99
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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.