Finding the Fourth Proportional to 624,639.40, 934,657.28 and 441,729.65
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Solution
The fourth proportional to 624,639.40, 934,657.28 and 441,729.65 is: 660,966.69
Step by Step Solution
- Step 1: Write the proportion equation
624,639.40 : 934,657.28 = 441,729.65 : x - Step 2: Convert to fraction form
624,639.40/934,657.28 = 441,729.65/x - Step 3: Cross multiply
624,639.40x = 934,657.28 × 441,729.65 - Step 4: Simplify right side
624,639.40x = 412,865,834,948.83 - Step 5: Solve for x
x = 412,865,834,948.83/624,639.40 - Step 6: Final answer
x = 660,966.69
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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.