Finding the Fourth Proportional to 1,863,572.84, 2,571,553.30 and 1,089,385.18
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Solution
The fourth proportional to 1,863,572.84, 2,571,553.30 and 1,089,385.18 is: 1,503,247.95
Step by Step Solution
- Step 1: Write the proportion equation
1,863,572.84 : 2,571,553.30 = 1,089,385.18 : x - Step 2: Convert to fraction form
1,863,572.84/2,571,553.30 = 1,089,385.18/x - Step 3: Cross multiply
1,863,572.84x = 2,571,553.30 × 1,089,385.18 - Step 4: Simplify right side
1,863,572.84x = 2,801,412,054,600.09 - Step 5: Solve for x
x = 2,801,412,054,600.09/1,863,572.84 - Step 6: Final answer
x = 1,503,247.95
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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.