Finding the Fourth Proportional to 920,645.39, 1,270,530.06 and 512,747.21
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Solution
The fourth proportional to 920,645.39, 1,270,530.06 and 512,747.21 is: 707,613.10
Step by Step Solution
- Step 1: Write the proportion equation
920,645.39 : 1,270,530.06 = 512,747.21 : x - Step 2: Convert to fraction form
920,645.39/1,270,530.06 = 512,747.21/x - Step 3: Cross multiply
920,645.39x = 1,270,530.06 × 512,747.21 - Step 4: Simplify right side
920,645.39x = 651,460,737,133.48 - Step 5: Solve for x
x = 651,460,737,133.48/920,645.39 - Step 6: Final answer
x = 707,613.10
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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.