Finding the Fourth Proportional to 421,739.59, 581,986.18 and 240,509.92
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Solution
The fourth proportional to 421,739.59, 581,986.18 and 240,509.92 is: 331,895.45
Step by Step Solution
- Step 1: Write the proportion equation
421,739.59 : 581,986.18 = 240,509.92 : x - Step 2: Convert to fraction form
421,739.59/581,986.18 = 240,509.92/x - Step 3: Cross multiply
421,739.59x = 581,986.18 × 240,509.92 - Step 4: Simplify right side
421,739.59x = 139,973,449,592.91 - Step 5: Solve for x
x = 139,973,449,592.91/421,739.59 - Step 6: Final answer
x = 331,895.45
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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.