Finding the Fourth Proportional to 457,421.31, 685,854.14 and 204,654.74
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Solution
The fourth proportional to 457,421.31, 685,854.14 and 204,654.74 is: 306,857.80
Step by Step Solution
- Step 1: Write the proportion equation
457,421.31 : 685,854.14 = 204,654.74 : x - Step 2: Convert to fraction form
457,421.31/685,854.14 = 204,654.74/x - Step 3: Cross multiply
457,421.31x = 685,854.14 × 204,654.74 - Step 4: Simplify right side
457,421.31x = 140,363,296,247.08 - Step 5: Solve for x
x = 140,363,296,247.08/457,421.31 - Step 6: Final answer
x = 306,857.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.