Finding the Fourth Proportional to 692,998.93, 956,354.21 and 406,725.49
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Solution
The fourth proportional to 692,998.93, 956,354.21 and 406,725.49 is: 561,290.38
Step by Step Solution
- Step 1: Write the proportion equation
692,998.93 : 956,354.21 = 406,725.49 : x - Step 2: Convert to fraction form
692,998.93/956,354.21 = 406,725.49/x - Step 3: Cross multiply
692,998.93x = 956,354.21 × 406,725.49 - Step 4: Simplify right side
692,998.93x = 388,973,634,675.81 - Step 5: Solve for x
x = 388,973,634,675.81/692,998.93 - Step 6: Final answer
x = 561,290.38
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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.