Finding the Fourth Proportional to 1,918,137.96, 2,877,138.84 and 478,829.52
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Solution
The fourth proportional to 1,918,137.96, 2,877,138.84 and 478,829.52 is: 718,227.28
Step by Step Solution
- Step 1: Write the proportion equation
1,918,137.96 : 2,877,138.84 = 478,829.52 : x - Step 2: Convert to fraction form
1,918,137.96/2,877,138.84 = 478,829.52/x - Step 3: Cross multiply
1,918,137.96x = 2,877,138.84 × 478,829.52 - Step 4: Simplify right side
1,918,137.96x = 1,377,659,009,730.56 - Step 5: Solve for x
x = 1,377,659,009,730.56/1,918,137.96 - Step 6: Final answer
x = 718,227.28
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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.