Finding the Fourth Proportional to 521,879.99, 721,643.85 and 414,263.18
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Solution
The fourth proportional to 521,879.99, 721,643.85 and 414,263.18 is: 572,833.77
Step by Step Solution
- Step 1: Write the proportion equation
521,879.99 : 721,643.85 = 414,263.18 : x - Step 2: Convert to fraction form
521,879.99/721,643.85 = 414,263.18/x - Step 3: Cross multiply
521,879.99x = 721,643.85 × 414,263.18 - Step 4: Simplify right side
521,879.99x = 298,950,477,932.55 - Step 5: Solve for x
x = 298,950,477,932.55/521,879.99 - Step 6: Final answer
x = 572,833.77
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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.