Finding the Fourth Proportional to 1,317,573.18, 1,975,465.53 and 418,745.34
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Solution
The fourth proportional to 1,317,573.18, 1,975,465.53 and 418,745.34 is: 627,833.81
Step by Step Solution
- Step 1: Write the proportion equation
1,317,573.18 : 1,975,465.53 = 418,745.34 : x - Step 2: Convert to fraction form
1,317,573.18/1,975,465.53 = 418,745.34/x - Step 3: Cross multiply
1,317,573.18x = 1,975,465.53 × 418,745.34 - Step 4: Simplify right side
1,317,573.18x = 827,216,985,018.13 - Step 5: Solve for x
x = 827,216,985,018.13/1,317,573.18 - Step 6: Final answer
x = 627,833.81
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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.