Finding the Fourth Proportional to 499,472.12, 688,682.58 and 403,682.60
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Solution
The fourth proportional to 499,472.12, 688,682.58 and 403,682.60 is: 556,605.99
Step by Step Solution
- Step 1: Write the proportion equation
499,472.12 : 688,682.58 = 403,682.60 : x - Step 2: Convert to fraction form
499,472.12/688,682.58 = 403,682.60/x - Step 3: Cross multiply
499,472.12x = 688,682.58 × 403,682.60 - Step 4: Simplify right side
499,472.12x = 278,009,174,469.11 - Step 5: Solve for x
x = 278,009,174,469.11/499,472.12 - Step 6: Final answer
x = 556,605.99
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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.