Finding the Fourth Proportional to 638,192.68, 880,705.87 and 351,712.76
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Solution
The fourth proportional to 638,192.68, 880,705.87 and 351,712.76 is: 485,363.59
Step by Step Solution
- Step 1: Write the proportion equation
638,192.68 : 880,705.87 = 351,712.76 : x - Step 2: Convert to fraction form
638,192.68/880,705.87 = 351,712.76/x - Step 3: Cross multiply
638,192.68x = 880,705.87 × 351,712.76 - Step 4: Simplify right side
638,192.68x = 309,755,487,003.09 - Step 5: Solve for x
x = 309,755,487,003.09/638,192.68 - Step 6: Final answer
x = 485,363.59
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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.