Finding the Fourth Proportional to 517,320.70, 713,839.89 and 287,823.81
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Solution
The fourth proportional to 517,320.70, 713,839.89 and 287,823.81 is: 397,161.99
Step by Step Solution
- Step 1: Write the proportion equation
517,320.70 : 713,839.89 = 287,823.81 : x - Step 2: Convert to fraction form
517,320.70/713,839.89 = 287,823.81/x - Step 3: Cross multiply
517,320.70x = 713,839.89 × 287,823.81 - Step 4: Simplify right side
517,320.70x = 205,460,116,869.78 - Step 5: Solve for x
x = 205,460,116,869.78/517,320.70 - Step 6: Final answer
x = 397,161.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.