Finding the Fourth Proportional to 466,478.99, 643,939.63 and 313,605.85
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Solution
The fourth proportional to 466,478.99, 643,939.63 and 313,605.85 is: 432,909.60
Step by Step Solution
- Step 1: Write the proportion equation
466,478.99 : 643,939.63 = 313,605.85 : x - Step 2: Convert to fraction form
466,478.99/643,939.63 = 313,605.85/x - Step 3: Cross multiply
466,478.99x = 643,939.63 × 313,605.85 - Step 4: Simplify right side
466,478.99x = 201,943,235,014.84 - Step 5: Solve for x
x = 201,943,235,014.84/466,478.99 - Step 6: Final answer
x = 432,909.60
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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.