Finding the Fourth Proportional to 4,157,621.20, 6,235,265.40 and 1,318,603.60
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Solution
The fourth proportional to 4,157,621.20, 6,235,265.40 and 1,318,603.60 is: 1,977,535.47
Step by Step Solution
- Step 1: Write the proportion equation
4,157,621.20 : 6,235,265.40 = 1,318,603.60 : x - Step 2: Convert to fraction form
4,157,621.20/6,235,265.40 = 1,318,603.60/x - Step 3: Cross multiply
4,157,621.20x = 6,235,265.40 × 1,318,603.60 - Step 4: Simplify right side
4,157,621.20x = 8,221,843,403,395.44 - Step 5: Solve for x
x = 8,221,843,403,395.44/4,157,621.20 - Step 6: Final answer
x = 1,977,535.47
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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.