Finding the Fourth Proportional to 1,318,648.74, 1,977,863.76 and 420,054.18
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Solution
The fourth proportional to 1,318,648.74, 1,977,863.76 and 420,054.18 is: 630,046.44
Step by Step Solution
- Step 1: Write the proportion equation
1,318,648.74 : 1,977,863.76 = 420,054.18 : x - Step 2: Convert to fraction form
1,318,648.74/1,977,863.76 = 420,054.18/x - Step 3: Cross multiply
1,318,648.74x = 1,977,863.76 × 420,054.18 - Step 4: Simplify right side
1,318,648.74x = 830,809,939,858.52 - Step 5: Solve for x
x = 830,809,939,858.52/1,318,648.74 - Step 6: Final answer
x = 630,046.44
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.