Finding the Fourth Proportional to 669,319.12, 923,393.28 and 427,538.98
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Solution
The fourth proportional to 669,319.12, 923,393.28 and 427,538.98 is: 589,833.17
Step by Step Solution
- Step 1: Write the proportion equation
669,319.12 : 923,393.28 = 427,538.98 : x - Step 2: Convert to fraction form
669,319.12/923,393.28 = 427,538.98/x - Step 3: Cross multiply
669,319.12x = 923,393.28 × 427,538.98 - Step 4: Simplify right side
669,319.12x = 394,786,621,070.05 - Step 5: Solve for x
x = 394,786,621,070.05/669,319.12 - Step 6: Final answer
x = 589,833.17
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.