Finding the Fourth Proportional to 865,562.70, 1,298,344.05 and 492,314.70
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Solution
The fourth proportional to 865,562.70, 1,298,344.05 and 492,314.70 is: 738,472.05
Step by Step Solution
- Step 1: Write the proportion equation
865,562.70 : 1,298,344.05 = 492,314.70 : x - Step 2: Convert to fraction form
865,562.70/1,298,344.05 = 492,314.70/x - Step 3: Cross multiply
865,562.70x = 1,298,344.05 × 492,314.70 - Step 4: Simplify right side
865,562.70x = 639,193,861,472.54 - Step 5: Solve for x
x = 639,193,861,472.54/865,562.70 - Step 6: Final answer
x = 738,472.05
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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.