Finding the Fourth Proportional to 729,767.98, 1,007,073.80 and 398,624.19
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Solution
The fourth proportional to 729,767.98, 1,007,073.80 and 398,624.19 is: 550,098.09
Step by Step Solution
- Step 1: Write the proportion equation
729,767.98 : 1,007,073.80 = 398,624.19 : x - Step 2: Convert to fraction form
729,767.98/1,007,073.80 = 398,624.19/x - Step 3: Cross multiply
729,767.98x = 1,007,073.80 × 398,624.19 - Step 4: Simplify right side
729,767.98x = 401,443,973,590.45 - Step 5: Solve for x
x = 401,443,973,590.45/729,767.98 - Step 6: Final answer
x = 550,098.09
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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.