Finding the Fourth Proportional to 640,365.11, 960,713.66 and 340,599.09
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Solution
The fourth proportional to 640,365.11, 960,713.66 and 340,599.09 is: 510,986.93
Step by Step Solution
- Step 1: Write the proportion equation
640,365.11 : 960,713.66 = 340,599.09 : x - Step 2: Convert to fraction form
640,365.11/960,713.66 = 340,599.09/x - Step 3: Cross multiply
640,365.11x = 960,713.66 × 340,599.09 - Step 4: Simplify right side
640,365.11x = 327,218,202,800.74 - Step 5: Solve for x
x = 327,218,202,800.74/640,365.11 - Step 6: Final answer
x = 510,986.93
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.