Finding the Fourth Proportional to 497,428.96, 686,480.01 and 376,360.05
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Solution
The fourth proportional to 497,428.96, 686,480.01 and 376,360.05 is: 519,398.09
Step by Step Solution
- Step 1: Write the proportion equation
497,428.96 : 686,480.01 = 376,360.05 : x - Step 2: Convert to fraction form
497,428.96/686,480.01 = 376,360.05/x - Step 3: Cross multiply
497,428.96x = 686,480.01 × 376,360.05 - Step 4: Simplify right side
497,428.96x = 258,363,650,887.60 - Step 5: Solve for x
x = 258,363,650,887.60/497,428.96 - Step 6: Final answer
x = 519,398.09
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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.