Finding the Fourth Proportional to 493,319.70, 680,778.68 and 266,965.20
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Solution
The fourth proportional to 493,319.70, 680,778.68 and 266,965.20 is: 368,410.62
Step by Step Solution
- Step 1: Write the proportion equation
493,319.70 : 680,778.68 = 266,965.20 : x - Step 2: Convert to fraction form
493,319.70/680,778.68 = 266,965.20/x - Step 3: Cross multiply
493,319.70x = 680,778.68 × 266,965.20 - Step 4: Simplify right side
493,319.70x = 181,744,216,461.94 - Step 5: Solve for x
x = 181,744,216,461.94/493,319.70 - Step 6: Final answer
x = 368,410.62
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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.