Finding the Fourth Proportional to 1,315,701.08, 1,815,682.64 and 771,846.13
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Solution
The fourth proportional to 1,315,701.08, 1,815,682.64 and 771,846.13 is: 1,065,156.55
Step by Step Solution
- Step 1: Write the proportion equation
1,315,701.08 : 1,815,682.64 = 771,846.13 : x - Step 2: Convert to fraction form
1,315,701.08/1,815,682.64 = 771,846.13/x - Step 3: Cross multiply
1,315,701.08x = 1,815,682.64 × 771,846.13 - Step 4: Simplify right side
1,315,701.08x = 1,401,427,618,992.18 - Step 5: Solve for x
x = 1,401,427,618,992.18/1,315,701.08 - Step 6: Final answer
x = 1,065,156.55
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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.