Finding the Fourth Proportional to 499,655.26, 689,330.58 and 318,334.72
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Solution
The fourth proportional to 499,655.26, 689,330.58 and 318,334.72 is: 439,178.52
Step by Step Solution
- Step 1: Write the proportion equation
499,655.26 : 689,330.58 = 318,334.72 : x - Step 2: Convert to fraction form
499,655.26/689,330.58 = 318,334.72/x - Step 3: Cross multiply
499,655.26x = 689,330.58 × 318,334.72 - Step 4: Simplify right side
499,655.26x = 219,437,857,171.74 - Step 5: Solve for x
x = 219,437,857,171.74/499,655.26 - Step 6: Final answer
x = 439,178.52
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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.