Finding the Fourth Proportional to 672,850.80, 928,554.84 and 386,428.32
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Solution
The fourth proportional to 672,850.80, 928,554.84 and 386,428.32 is: 533,282.99
Step by Step Solution
- Step 1: Write the proportion equation
672,850.80 : 928,554.84 = 386,428.32 : x - Step 2: Convert to fraction form
672,850.80/928,554.84 = 386,428.32/x - Step 3: Cross multiply
672,850.80x = 928,554.84 × 386,428.32 - Step 4: Simplify right side
672,850.80x = 358,819,886,849.07 - Step 5: Solve for x
x = 358,819,886,849.07/672,850.80 - Step 6: Final answer
x = 533,282.99
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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.