Finding the Fourth Proportional to 692,704.05, 956,090.97 and 406,316.40
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Solution
The fourth proportional to 692,704.05, 956,090.97 and 406,316.40 is: 560,810.12
Step by Step Solution
- Step 1: Write the proportion equation
692,704.05 : 956,090.97 = 406,316.40 : x - Step 2: Convert to fraction form
692,704.05/956,090.97 = 406,316.40/x - Step 3: Cross multiply
692,704.05x = 956,090.97 × 406,316.40 - Step 4: Simplify right side
692,704.05x = 388,475,441,652.81 - Step 5: Solve for x
x = 388,475,441,652.81/692,704.05 - Step 6: Final answer
x = 560,810.12
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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.