Finding the Fourth Proportional to 514,382.59, 709,873.43 and 310,430.26
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Solution
The fourth proportional to 514,382.59, 709,873.43 and 310,430.26 is: 428,409.12
Step by Step Solution
- Step 1: Write the proportion equation
514,382.59 : 709,873.43 = 310,430.26 : x - Step 2: Convert to fraction form
514,382.59/709,873.43 = 310,430.26/x - Step 3: Cross multiply
514,382.59x = 709,873.43 × 310,430.26 - Step 4: Simplify right side
514,382.59x = 220,366,193,441.99 - Step 5: Solve for x
x = 220,366,193,441.99/514,382.59 - Step 6: Final answer
x = 428,409.12
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1.5x scale
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.