Finding the Fourth Proportional to 1,688,563.24, 2,533,318.39 and 678,394.55
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Solution
The fourth proportional to 1,688,563.24, 2,533,318.39 and 678,394.55 is: 1,017,782.08
Step by Step Solution
- Step 1: Write the proportion equation
1,688,563.24 : 2,533,318.39 = 678,394.55 : x - Step 2: Convert to fraction form
1,688,563.24/2,533,318.39 = 678,394.55/x - Step 3: Cross multiply
1,688,563.24x = 2,533,318.39 × 678,394.55 - Step 4: Simplify right side
1,688,563.24x = 1,718,589,396,372.06 - Step 5: Solve for x
x = 1,718,589,396,372.06/1,688,563.24 - Step 6: Final answer
x = 1,017,782.08
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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.