Finding the Fourth Proportional to 1,553,431.23, 2,143,301.99 and 1,001,913.57
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Solution
The fourth proportional to 1,553,431.23, 2,143,301.99 and 1,001,913.57 is: 1,382,361.38
Step by Step Solution
- Step 1: Write the proportion equation
1,553,431.23 : 2,143,301.99 = 1,001,913.57 : x - Step 2: Convert to fraction form
1,553,431.23/2,143,301.99 = 1,001,913.57/x - Step 3: Cross multiply
1,553,431.23x = 2,143,301.99 × 1,001,913.57 - Step 4: Simplify right side
1,553,431.23x = 2,147,403,343,379.44 - Step 5: Solve for x
x = 2,147,403,343,379.44/1,553,431.23 - Step 6: Final answer
x = 1,382,361.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.