Finding the Fourth Proportional to 488,860.70, 636,218.75 and 488,860.70
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Solution
The fourth proportional to 488,860.70, 636,218.75 and 488,860.70 is: 636,218.75
Step by Step Solution
- Step 1: Write the proportion equation
488,860.70 : 636,218.75 = 488,860.70 : x - Step 2: Convert to fraction form
488,860.70/636,218.75 = 488,860.70/x - Step 3: Cross multiply
488,860.70x = 636,218.75 × 488,860.70 - Step 4: Simplify right side
488,860.70x = 311,022,343,478.13 - Step 5: Solve for x
x = 311,022,343,478.13/488,860.70 - Step 6: Final answer
x = 636,218.75
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These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.