Finding the Fourth Proportional to 669,053.05, 922,873.23 and 396,928.28
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Solution
The fourth proportional to 669,053.05, 922,873.23 and 396,928.28 is: 547,511.87
Step by Step Solution
- Step 1: Write the proportion equation
669,053.05 : 922,873.23 = 396,928.28 : x - Step 2: Convert to fraction form
669,053.05/922,873.23 = 396,928.28/x - Step 3: Cross multiply
669,053.05x = 922,873.23 × 396,928.28 - Step 4: Simplify right side
669,053.05x = 366,314,486,149.13 - Step 5: Solve for x
x = 366,314,486,149.13/669,053.05 - Step 6: Final answer
x = 547,511.87
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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.