Finding the Fourth Proportional to 920,851.98, 1,270,607.09 and 512,943.68
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Solution
The fourth proportional to 920,851.98, 1,270,607.09 and 512,943.68 is: 707,768.34
Step by Step Solution
- Step 1: Write the proportion equation
920,851.98 : 1,270,607.09 = 512,943.68 : x - Step 2: Convert to fraction form
920,851.98/1,270,607.09 = 512,943.68/x - Step 3: Cross multiply
920,851.98x = 1,270,607.09 × 512,943.68 - Step 4: Simplify right side
920,851.98x = 651,749,876,502.22 - Step 5: Solve for x
x = 651,749,876,502.22/920,851.98 - Step 6: Final answer
x = 707,768.34
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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.