Finding the Fourth Proportional to 520,789.13, 781,183.70 and 494,195.21
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Solution
The fourth proportional to 520,789.13, 781,183.70 and 494,195.21 is: 741,292.82
Step by Step Solution
- Step 1: Write the proportion equation
520,789.13 : 781,183.70 = 494,195.21 : x - Step 2: Convert to fraction form
520,789.13/781,183.70 = 494,195.21/x - Step 3: Cross multiply
520,789.13x = 781,183.70 × 494,195.21 - Step 4: Simplify right side
520,789.13x = 386,057,242,670.08 - Step 5: Solve for x
x = 386,057,242,670.08/520,789.13 - Step 6: Final answer
x = 741,292.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.