Finding the Fourth Proportional to 520,374.41, 718,152.99 and 290,976.38
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Solution
The fourth proportional to 520,374.41, 718,152.99 and 290,976.38 is: 401,567.70
Step by Step Solution
- Step 1: Write the proportion equation
520,374.41 : 718,152.99 = 290,976.38 : x - Step 2: Convert to fraction form
520,374.41/718,152.99 = 290,976.38/x - Step 3: Cross multiply
520,374.41x = 718,152.99 × 290,976.38 - Step 4: Simplify right side
520,374.41x = 208,965,557,316.38 - Step 5: Solve for x
x = 208,965,557,316.38/520,374.41 - Step 6: Final answer
x = 401,567.70
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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.