Finding the Fourth Proportional to 1,521,121.95, 2,099,173.05 and 832,782.20
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Solution
The fourth proportional to 1,521,121.95, 2,099,173.05 and 832,782.20 is: 1,149,252.98
Step by Step Solution
- Step 1: Write the proportion equation
1,521,121.95 : 2,099,173.05 = 832,782.20 : x - Step 2: Convert to fraction form
1,521,121.95/2,099,173.05 = 832,782.20/x - Step 3: Cross multiply
1,521,121.95x = 2,099,173.05 × 832,782.20 - Step 4: Simplify right side
1,521,121.95x = 1,748,153,940,263.84 - Step 5: Solve for x
x = 1,748,153,940,263.84/1,521,121.95 - Step 6: Final answer
x = 1,149,252.98
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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.