Finding the Fourth Proportional to 611,013.81, 916,402.05 and 307,326.99
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Solution
The fourth proportional to 611,013.81, 916,402.05 and 307,326.99 is: 460,930.80
Step by Step Solution
- Step 1: Write the proportion equation
611,013.81 : 916,402.05 = 307,326.99 : x - Step 2: Convert to fraction form
611,013.81/916,402.05 = 307,326.99/x - Step 3: Cross multiply
611,013.81x = 916,402.05 × 307,326.99 - Step 4: Simplify right side
611,013.81x = 281,635,083,656.33 - Step 5: Solve for x
x = 281,635,083,656.33/611,013.81 - Step 6: Final answer
x = 460,930.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.