Finding the Fourth Proportional to 678,544.40, 935,600.19 and 506,163.12
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Solution
The fourth proportional to 678,544.40, 935,600.19 and 506,163.12 is: 697,914.99
Step by Step Solution
- Step 1: Write the proportion equation
678,544.40 : 935,600.19 = 506,163.12 : x - Step 2: Convert to fraction form
678,544.40/935,600.19 = 506,163.12/x - Step 3: Cross multiply
678,544.40x = 935,600.19 × 506,163.12 - Step 4: Simplify right side
678,544.40x = 473,566,308,712.18 - Step 5: Solve for x
x = 473,566,308,712.18/678,544.40 - Step 6: Final answer
x = 697,914.99
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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.