Finding the Fourth Proportional to 1,800,521.06, 2,487,145.32 and 1,440,518.99
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Solution
The fourth proportional to 1,800,521.06, 2,487,145.32 and 1,440,518.99 is: 1,989,857.35
Step by Step Solution
- Step 1: Write the proportion equation
1,800,521.06 : 2,487,145.32 = 1,440,518.99 : x - Step 2: Convert to fraction form
1,800,521.06/2,487,145.32 = 1,440,518.99/x - Step 3: Cross multiply
1,800,521.06x = 2,487,145.32 × 1,440,518.99 - Step 4: Simplify right side
1,800,521.06x = 3,582,780,051,913.90 - Step 5: Solve for x
x = 3,582,780,051,913.90/1,800,521.06 - Step 6: Final answer
x = 1,989,857.35
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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.