Finding the Fourth Proportional to 678,130.08, 935,715.60 and 406,134.24
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Solution
The fourth proportional to 678,130.08, 935,715.60 and 406,134.24 is: 560,403.02
Step by Step Solution
- Step 1: Write the proportion equation
678,130.08 : 935,715.60 = 406,134.24 : x - Step 2: Convert to fraction form
678,130.08/935,715.60 = 406,134.24/x - Step 3: Cross multiply
678,130.08x = 935,715.60 × 406,134.24 - Step 4: Simplify right side
678,130.08x = 380,026,144,062.14 - Step 5: Solve for x
x = 380,026,144,062.14/678,130.08 - Step 6: Final answer
x = 560,403.02
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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.