Finding the Fourth Proportional to 492,687.21, 679,909.35 and 266,332.71
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Solution
The fourth proportional to 492,687.21, 679,909.35 and 266,332.71 is: 367,539.68
Step by Step Solution
- Step 1: Write the proportion equation
492,687.21 : 679,909.35 = 266,332.71 : x - Step 2: Convert to fraction form
492,687.21/679,909.35 = 266,332.71/x - Step 3: Cross multiply
492,687.21x = 679,909.35 × 266,332.71 - Step 4: Simplify right side
492,687.21x = 181,082,099,739.84 - Step 5: Solve for x
x = 181,082,099,739.84/492,687.21 - Step 6: Final answer
x = 367,539.68
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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.