Finding the Fourth Proportional to 501,701.19, 692,480.39 and 310,605.99
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Solution
The fourth proportional to 501,701.19, 692,480.39 and 310,605.99 is: 428,718.45
Step by Step Solution
- Step 1: Write the proportion equation
501,701.19 : 692,480.39 = 310,605.99 : x - Step 2: Convert to fraction form
501,701.19/692,480.39 = 310,605.99/x - Step 3: Cross multiply
501,701.19x = 692,480.39 × 310,605.99 - Step 4: Simplify right side
501,701.19x = 215,088,555,538.51 - Step 5: Solve for x
x = 215,088,555,538.51/501,701.19 - Step 6: Final answer
x = 428,718.45
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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.