Finding the Fourth Proportional to 638,609.44, 880,365.54 and 502,407.19
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Solution
The fourth proportional to 638,609.44, 880,365.54 and 502,407.19 is: 692,601.69
Step by Step Solution
- Step 1: Write the proportion equation
638,609.44 : 880,365.54 = 502,407.19 : x - Step 2: Convert to fraction form
638,609.44/880,365.54 = 502,407.19/x - Step 3: Cross multiply
638,609.44x = 880,365.54 × 502,407.19 - Step 4: Simplify right side
638,609.44x = 442,301,977,124.23 - Step 5: Solve for x
x = 442,301,977,124.23/638,609.44 - Step 6: Final answer
x = 692,601.69
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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.