Finding the Fourth Proportional to 531,078.18, 732,553.11 and 316,057.74
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Solution
The fourth proportional to 531,078.18, 732,553.11 and 316,057.74 is: 435,960.45
Step by Step Solution
- Step 1: Write the proportion equation
531,078.18 : 732,553.11 = 316,057.74 : x - Step 2: Convert to fraction form
531,078.18/732,553.11 = 316,057.74/x - Step 3: Cross multiply
531,078.18x = 732,553.11 × 316,057.74 - Step 4: Simplify right side
531,078.18x = 231,529,080,376.57 - Step 5: Solve for x
x = 231,529,080,376.57/531,078.18 - Step 6: Final answer
x = 435,960.45
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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.