Finding the Fourth Proportional to 1,206,140.75, 1,817,880.70 and 1,039,670.25
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Solution
The fourth proportional to 1,206,140.75, 1,817,880.70 and 1,039,670.25 is: 1,566,978.38
Step by Step Solution
- Step 1: Write the proportion equation
1,206,140.75 : 1,817,880.70 = 1,039,670.25 : x - Step 2: Convert to fraction form
1,206,140.75/1,817,880.70 = 1,039,670.25/x - Step 3: Cross multiply
1,206,140.75x = 1,817,880.70 × 1,039,670.25 - Step 4: Simplify right side
1,206,140.75x = 1,889,996,481,839.18 - Step 5: Solve for x
x = 1,889,996,481,839.18/1,206,140.75 - Step 6: Final answer
x = 1,566,978.38
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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.