Finding the Fourth Proportional to 918,936.63, 1,377,206.96 and 469,278.50
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Solution
The fourth proportional to 918,936.63, 1,377,206.96 and 469,278.50 is: 703,305.96
Step by Step Solution
- Step 1: Write the proportion equation
918,936.63 : 1,377,206.96 = 469,278.50 : x - Step 2: Convert to fraction form
918,936.63/1,377,206.96 = 469,278.50/x - Step 3: Cross multiply
918,936.63x = 1,377,206.96 × 469,278.50 - Step 4: Simplify right side
918,936.63x = 646,293,607,145.93 - Step 5: Solve for x
x = 646,293,607,145.93/918,936.63 - Step 6: Final answer
x = 703,305.96
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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.