Finding the Fourth Proportional to 920,928.18, 1,270,861.74 and 513,029.46
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Solution
The fourth proportional to 920,928.18, 1,270,861.74 and 513,029.46 is: 707,969.99
Step by Step Solution
- Step 1: Write the proportion equation
920,928.18 : 1,270,861.74 = 513,029.46 : x - Step 2: Convert to fraction form
920,928.18/1,270,861.74 = 513,029.46/x - Step 3: Cross multiply
920,928.18x = 1,270,861.74 × 513,029.46 - Step 4: Simplify right side
920,928.18x = 651,989,512,206.86 - Step 5: Solve for x
x = 651,989,512,206.86/920,928.18 - Step 6: Final answer
x = 707,969.99
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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.