Finding the Fourth Proportional to 745,228.66, 1,028,549.68 and 439,286.88
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Solution
The fourth proportional to 745,228.66, 1,028,549.68 and 439,286.88 is: 606,294.96
Step by Step Solution
- Step 1: Write the proportion equation
745,228.66 : 1,028,549.68 = 439,286.88 : x - Step 2: Convert to fraction form
745,228.66/1,028,549.68 = 439,286.88/x - Step 3: Cross multiply
745,228.66x = 1,028,549.68 × 439,286.88 - Step 4: Simplify right side
745,228.66x = 451,828,379,852.20 - Step 5: Solve for x
x = 451,828,379,852.20/745,228.66 - Step 6: Final answer
x = 606,294.96
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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.