Finding the Fourth Proportional to 776,354.06, 1,163,586.85 and 415,638.48
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Solution
The fourth proportional to 776,354.06, 1,163,586.85 and 415,638.48 is: 622,952.20
Step by Step Solution
- Step 1: Write the proportion equation
776,354.06 : 1,163,586.85 = 415,638.48 : x - Step 2: Convert to fraction form
776,354.06/1,163,586.85 = 415,638.48/x - Step 3: Cross multiply
776,354.06x = 1,163,586.85 × 415,638.48 - Step 4: Simplify right side
776,354.06x = 483,631,473,006.34 - Step 5: Solve for x
x = 483,631,473,006.34/776,354.06 - Step 6: Final answer
x = 622,952.20
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.