Finding the Fourth Proportional to 953,378.16, 1,316,515.84 and 711,240.20
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Solution
The fourth proportional to 953,378.16, 1,316,515.84 and 711,240.20 is: 982,148.56
Step by Step Solution
- Step 1: Write the proportion equation
953,378.16 : 1,316,515.84 = 711,240.20 : x - Step 2: Convert to fraction form
953,378.16/1,316,515.84 = 711,240.20/x - Step 3: Cross multiply
953,378.16x = 1,316,515.84 × 711,240.20 - Step 4: Simplify right side
953,378.16x = 936,358,989,344.77 - Step 5: Solve for x
x = 936,358,989,344.77/953,378.16 - Step 6: Final answer
x = 982,148.56
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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.