Finding the Fourth Proportional to 1,490,645.08, 2,058,368.99 and 1,442,441.72
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Solution
The fourth proportional to 1,490,645.08, 2,058,368.99 and 1,442,441.72 is: 1,991,807.01
Step by Step Solution
- Step 1: Write the proportion equation
1,490,645.08 : 2,058,368.99 = 1,442,441.72 : x - Step 2: Convert to fraction form
1,490,645.08/2,058,368.99 = 1,442,441.72/x - Step 3: Cross multiply
1,490,645.08x = 2,058,368.99 × 1,442,441.72 - Step 4: Simplify right side
1,490,645.08x = 2,969,077,315,082.29 - Step 5: Solve for x
x = 2,969,077,315,082.29/1,490,645.08 - Step 6: Final answer
x = 1,991,807.01
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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.