Finding the Fourth Proportional to 718,465.70, 991,461.44 and 396,175.70
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Solution
The fourth proportional to 718,465.70, 991,461.44 and 396,175.70 is: 546,710.76
Step by Step Solution
- Step 1: Write the proportion equation
718,465.70 : 991,461.44 = 396,175.70 : x - Step 2: Convert to fraction form
718,465.70/991,461.44 = 396,175.70/x - Step 3: Cross multiply
718,465.70x = 991,461.44 × 396,175.70 - Step 4: Simplify right side
718,465.70x = 392,792,933,484.10 - Step 5: Solve for x
x = 392,792,933,484.10/718,465.70 - Step 6: Final answer
x = 546,710.76
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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.