Finding the Fourth Proportional to 451,010.65, 621,895.96 and 287,407.99
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Solution
The fourth proportional to 451,010.65, 621,895.96 and 287,407.99 is: 396,305.20
Step by Step Solution
- Step 1: Write the proportion equation
451,010.65 : 621,895.96 = 287,407.99 : x - Step 2: Convert to fraction form
451,010.65/621,895.96 = 287,407.99/x - Step 3: Cross multiply
451,010.65x = 621,895.96 × 287,407.99 - Step 4: Simplify right side
451,010.65x = 178,737,867,852.72 - Step 5: Solve for x
x = 178,737,867,852.72/451,010.65 - Step 6: Final answer
x = 396,305.20
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.