Finding the Fourth Proportional to 1,230,515.80, 1,845,773.70 and 1,118,322.70
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Solution
The fourth proportional to 1,230,515.80, 1,845,773.70 and 1,118,322.70 is: 1,677,484.05
Step by Step Solution
- Step 1: Write the proportion equation
1,230,515.80 : 1,845,773.70 = 1,118,322.70 : x - Step 2: Convert to fraction form
1,230,515.80/1,845,773.70 = 1,118,322.70/x - Step 3: Cross multiply
1,230,515.80x = 1,845,773.70 × 1,118,322.70 - Step 4: Simplify right side
1,230,515.80x = 2,064,170,627,772.99 - Step 5: Solve for x
x = 2,064,170,627,772.99/1,230,515.80 - Step 6: Final answer
x = 1,677,484.05
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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.