Finding the Fourth Proportional to 720,331.90, 1,079,746.98 and 270,743.02
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Solution
The fourth proportional to 720,331.90, 1,079,746.98 and 270,743.02 is: 405,832.31
Step by Step Solution
- Step 1: Write the proportion equation
720,331.90 : 1,079,746.98 = 270,743.02 : x - Step 2: Convert to fraction form
720,331.90/1,079,746.98 = 270,743.02/x - Step 3: Cross multiply
720,331.90x = 1,079,746.98 × 270,743.02 - Step 4: Simplify right side
720,331.90x = 292,333,958,201.08 - Step 5: Solve for x
x = 292,333,958,201.08/720,331.90 - Step 6: Final answer
x = 405,832.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.