Finding the Fourth Proportional to 557,920.55, 769,930.86 and 303,271.74
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Solution
The fourth proportional to 557,920.55, 769,930.86 and 303,271.74 is: 418,515.28
Step by Step Solution
- Step 1: Write the proportion equation
557,920.55 : 769,930.86 = 303,271.74 : x - Step 2: Convert to fraction form
557,920.55/769,930.86 = 303,271.74/x - Step 3: Cross multiply
557,920.55x = 769,930.86 × 303,271.74 - Step 4: Simplify right side
557,920.55x = 233,498,271,591.90 - Step 5: Solve for x
x = 233,498,271,591.90/557,920.55 - Step 6: Final answer
x = 418,515.28
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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.