Finding the Fourth Proportional to 1,980,583.65, 2,971,979.03 and 1,069,747.70
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Solution
The fourth proportional to 1,980,583.65, 2,971,979.03 and 1,069,747.70 is: 1,605,217.59
Step by Step Solution
- Step 1: Write the proportion equation
1,980,583.65 : 2,971,979.03 = 1,069,747.70 : x - Step 2: Convert to fraction form
1,980,583.65/2,971,979.03 = 1,069,747.70/x - Step 3: Cross multiply
1,980,583.65x = 2,971,979.03 × 1,069,747.70 - Step 4: Simplify right side
1,980,583.65x = 3,179,267,719,605.21 - Step 5: Solve for x
x = 3,179,267,719,605.21/1,980,583.65 - Step 6: Final answer
x = 1,605,217.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.