Finding the Fourth Proportional to 669,320.12, 923,394.66 and 427,539.98
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Solution
The fourth proportional to 669,320.12, 923,394.66 and 427,539.98 is: 589,834.55
Step by Step Solution
- Step 1: Write the proportion equation
669,320.12 : 923,394.66 = 427,539.98 : x - Step 2: Convert to fraction form
669,320.12/923,394.66 = 427,539.98/x - Step 3: Cross multiply
669,320.12x = 923,394.66 × 427,539.98 - Step 4: Simplify right side
669,320.12x = 394,788,134,468.51 - Step 5: Solve for x
x = 394,788,134,468.51/669,320.12 - Step 6: Final answer
x = 589,834.55
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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.