Finding the Fourth Proportional to 567,221.76, 782,771.20 and 312,582.08
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Solution
The fourth proportional to 567,221.76, 782,771.20 and 312,582.08 is: 431,366.12
Step by Step Solution
- Step 1: Write the proportion equation
567,221.76 : 782,771.20 = 312,582.08 : x - Step 2: Convert to fraction form
567,221.76/782,771.20 = 312,582.08/x - Step 3: Cross multiply
567,221.76x = 782,771.20 × 312,582.08 - Step 4: Simplify right side
567,221.76x = 244,680,249,860.10 - Step 5: Solve for x
x = 244,680,249,860.10/567,221.76 - Step 6: Final answer
x = 431,366.12
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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.