Finding the Fourth Proportional to 674,234.18, 930,471.45 and 387,754.49
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Solution
The fourth proportional to 674,234.18, 930,471.45 and 387,754.49 is: 535,117.47
Step by Step Solution
- Step 1: Write the proportion equation
674,234.18 : 930,471.45 = 387,754.49 : x - Step 2: Convert to fraction form
674,234.18/930,471.45 = 387,754.49/x - Step 3: Cross multiply
674,234.18x = 930,471.45 × 387,754.49 - Step 4: Simplify right side
674,234.18x = 360,794,485,607.53 - Step 5: Solve for x
x = 360,794,485,607.53/674,234.18 - Step 6: Final answer
x = 535,117.47
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1.5x scale
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.