Finding the Fourth Proportional to 1,528,879.99, 2,109,855.72 and 840,563.55
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Solution
The fourth proportional to 1,528,879.99, 2,109,855.72 and 840,563.55 is: 1,159,978.43
Step by Step Solution
- Step 1: Write the proportion equation
1,528,879.99 : 2,109,855.72 = 840,563.55 : x - Step 2: Convert to fraction form
1,528,879.99/2,109,855.72 = 840,563.55/x - Step 3: Cross multiply
1,528,879.99x = 2,109,855.72 × 840,563.55 - Step 4: Simplify right side
1,528,879.99x = 1,773,467,813,991.01 - Step 5: Solve for x
x = 1,773,467,813,991.01/1,528,879.99 - Step 6: Final answer
x = 1,159,978.43
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.