Finding the Fourth Proportional to 520,663.08, 780,103.06 and 284,171.70
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Solution
The fourth proportional to 520,663.08, 780,103.06 and 284,171.70 is: 425,770.95
Step by Step Solution
- Step 1: Write the proportion equation
520,663.08 : 780,103.06 = 284,171.70 : x - Step 2: Convert to fraction form
520,663.08/780,103.06 = 284,171.70/x - Step 3: Cross multiply
520,663.08x = 780,103.06 × 284,171.70 - Step 4: Simplify right side
520,663.08x = 221,683,212,735.40 - Step 5: Solve for x
x = 221,683,212,735.40/520,663.08 - Step 6: Final answer
x = 425,770.95
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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.