Finding the Fourth Proportional to 1,977,221.64, 2,728,459.80 and 1,117,730.64
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Solution
The fourth proportional to 1,977,221.64, 2,728,459.80 and 1,117,730.64 is: 1,542,408.33
Step by Step Solution
- Step 1: Write the proportion equation
1,977,221.64 : 2,728,459.80 = 1,117,730.64 : x - Step 2: Convert to fraction form
1,977,221.64/2,728,459.80 = 1,117,730.64/x - Step 3: Cross multiply
1,977,221.64x = 2,728,459.80 × 1,117,730.64 - Step 4: Simplify right side
1,977,221.64x = 3,049,683,118,468.27 - Step 5: Solve for x
x = 3,049,683,118,468.27/1,977,221.64 - Step 6: Final answer
x = 1,542,408.33
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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.