Finding the Fourth Proportional to 1,659,712.80, 2,489,569.20 and 537,781.80
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Solution
The fourth proportional to 1,659,712.80, 2,489,569.20 and 537,781.80 is: 806,672.70
Step by Step Solution
- Step 1: Write the proportion equation
1,659,712.80 : 2,489,569.20 = 537,781.80 : x - Step 2: Convert to fraction form
1,659,712.80/2,489,569.20 = 537,781.80/x - Step 3: Cross multiply
1,659,712.80x = 2,489,569.20 × 537,781.80 - Step 4: Simplify right side
1,659,712.80x = 1,338,845,005,600.56 - Step 5: Solve for x
x = 1,338,845,005,600.56/1,659,712.80 - Step 6: Final answer
x = 806,672.70
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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.