Finding the Fourth Proportional to 692,427.74, 955,709.70 and 406,040.09
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Solution
The fourth proportional to 692,427.74, 955,709.70 and 406,040.09 is: 560,428.80
Step by Step Solution
- Step 1: Write the proportion equation
692,427.74 : 955,709.70 = 406,040.09 : x - Step 2: Convert to fraction form
692,427.74/955,709.70 = 406,040.09/x - Step 3: Cross multiply
692,427.74x = 955,709.70 × 406,040.09 - Step 4: Simplify right side
692,427.74x = 388,056,447,823.33 - Step 5: Solve for x
x = 388,056,447,823.33/692,427.74 - Step 6: Final answer
x = 560,428.80
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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.