Finding the Fourth Proportional to 493,415.09, 680,840.35 and 275,596.93
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Solution
The fourth proportional to 493,415.09, 680,840.35 and 275,596.93 is: 380,283.28
Step by Step Solution
- Step 1: Write the proportion equation
493,415.09 : 680,840.35 = 275,596.93 : x - Step 2: Convert to fraction form
493,415.09/680,840.35 = 275,596.93/x - Step 3: Cross multiply
493,415.09x = 680,840.35 × 275,596.93 - Step 4: Simplify right side
493,415.09x = 187,637,510,280.13 - Step 5: Solve for x
x = 187,637,510,280.13/493,415.09 - Step 6: Final answer
x = 380,283.28
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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.