Finding the Fourth Proportional to 521,012.99, 781,519.49 and 147,035.99
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Solution
The fourth proportional to 521,012.99, 781,519.49 and 147,035.99 is: 220,553.99
Step by Step Solution
- Step 1: Write the proportion equation
521,012.99 : 781,519.49 = 147,035.99 : x - Step 2: Convert to fraction form
521,012.99/781,519.49 = 147,035.99/x - Step 3: Cross multiply
521,012.99x = 781,519.49 × 147,035.99 - Step 4: Simplify right side
521,012.99x = 114,911,493,686.45 - Step 5: Solve for x
x = 114,911,493,686.45/521,012.99 - Step 6: Final answer
x = 220,553.99
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1.5x scale
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.