Finding the Fourth Proportional to 719,319.84, 992,590.60 and 397,009.12
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Solution
The fourth proportional to 719,319.84, 992,590.60 and 397,009.12 is: 547,833.52
Step by Step Solution
- Step 1: Write the proportion equation
719,319.84 : 992,590.60 = 397,009.12 : x - Step 2: Convert to fraction form
719,319.84/992,590.60 = 397,009.12/x - Step 3: Cross multiply
719,319.84x = 992,590.60 × 397,009.12 - Step 4: Simplify right side
719,319.84x = 394,067,520,626.27 - Step 5: Solve for x
x = 394,067,520,626.27/719,319.84 - Step 6: Final answer
x = 547,833.52
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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.