Finding the Fourth Proportional to 1,273,465.84, 1,909,786.92 and 420,345.84
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Solution
The fourth proportional to 1,273,465.84, 1,909,786.92 and 420,345.84 is: 630,382.82
Step by Step Solution
- Step 1: Write the proportion equation
1,273,465.84 : 1,909,786.92 = 420,345.84 : x - Step 2: Convert to fraction form
1,273,465.84/1,909,786.92 = 420,345.84/x - Step 3: Cross multiply
1,273,465.84x = 1,909,786.92 × 420,345.84 - Step 4: Simplify right side
1,273,465.84x = 802,770,987,108.41 - Step 5: Solve for x
x = 802,770,987,108.41/1,273,465.84 - Step 6: Final answer
x = 630,382.82
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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.