Finding the Fourth Proportional to 663,281.37, 915,352.79 and 376,849.98
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Solution
The fourth proportional to 663,281.37, 915,352.79 and 376,849.98 is: 520,066.89
Step by Step Solution
- Step 1: Write the proportion equation
663,281.37 : 915,352.79 = 376,849.98 : x - Step 2: Convert to fraction form
663,281.37/915,352.79 = 376,849.98/x - Step 3: Cross multiply
663,281.37x = 915,352.79 × 376,849.98 - Step 4: Simplify right side
663,281.37x = 344,950,678,720.19 - Step 5: Solve for x
x = 344,950,678,720.19/663,281.37 - Step 6: Final answer
x = 520,066.89
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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.