Finding the Fourth Proportional to 489,338.24, 734,138.58 and 389,873.48
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Solution
The fourth proportional to 489,338.24, 734,138.58 and 389,873.48 is: 584,914.77
Step by Step Solution
- Step 1: Write the proportion equation
489,338.24 : 734,138.58 = 389,873.48 : x - Step 2: Convert to fraction form
489,338.24/734,138.58 = 389,873.48/x - Step 3: Cross multiply
489,338.24x = 734,138.58 × 389,873.48 - Step 4: Simplify right side
489,338.24x = 286,221,162,986.86 - Step 5: Solve for x
x = 286,221,162,986.86/489,338.24 - Step 6: Final answer
x = 584,914.77
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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.