Finding the Fourth Proportional to 1,419,199.74, 2,129,138.55 and 472,578.66
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Solution
The fourth proportional to 1,419,199.74, 2,129,138.55 and 472,578.66 is: 708,980.85
Step by Step Solution
- Step 1: Write the proportion equation
1,419,199.74 : 2,129,138.55 = 472,578.66 : x - Step 2: Convert to fraction form
1,419,199.74/2,129,138.55 = 472,578.66/x - Step 3: Cross multiply
1,419,199.74x = 2,129,138.55 × 472,578.66 - Step 4: Simplify right side
1,419,199.74x = 1,006,185,442,913.34 - Step 5: Solve for x
x = 1,006,185,442,913.34/1,419,199.74 - Step 6: Final answer
x = 708,980.85
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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.