Finding the Fourth Proportional to 1,432,235.91, 1,976,509.65 and 820,442.18
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Solution
The fourth proportional to 1,432,235.91, 1,976,509.65 and 820,442.18 is: 1,132,224.00
Step by Step Solution
- Step 1: Write the proportion equation
1,432,235.91 : 1,976,509.65 = 820,442.18 : x - Step 2: Convert to fraction form
1,432,235.91/1,976,509.65 = 820,442.18/x - Step 3: Cross multiply
1,432,235.91x = 1,976,509.65 × 820,442.18 - Step 4: Simplify right side
1,432,235.91x = 1,621,611,876,154.49 - Step 5: Solve for x
x = 1,621,611,876,154.49/1,432,235.91 - Step 6: Final answer
x = 1,132,224.00
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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.