Finding the Fourth Proportional to 498,505.16, 687,911.10 and 272,106.92
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Solution
The fourth proportional to 498,505.16, 687,911.10 and 272,106.92 is: 375,493.35
Step by Step Solution
- Step 1: Write the proportion equation
498,505.16 : 687,911.10 = 272,106.92 : x - Step 2: Convert to fraction form
498,505.16/687,911.10 = 272,106.92/x - Step 3: Cross multiply
498,505.16x = 687,911.10 × 272,106.92 - Step 4: Simplify right side
498,505.16x = 187,185,370,654.81 - Step 5: Solve for x
x = 187,185,370,654.81/498,505.16 - Step 6: Final answer
x = 375,493.35
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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.