Finding the Fourth Proportional to 498,253.42, 687,612.12 and 280,537.06
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Solution
The fourth proportional to 498,253.42, 687,612.12 and 280,537.06 is: 387,153.76
Step by Step Solution
- Step 1: Write the proportion equation
498,253.42 : 687,612.12 = 280,537.06 : x - Step 2: Convert to fraction form
498,253.42/687,612.12 = 280,537.06/x - Step 3: Cross multiply
498,253.42x = 687,612.12 × 280,537.06 - Step 4: Simplify right side
498,253.42x = 192,900,682,565.17 - Step 5: Solve for x
x = 192,900,682,565.17/498,253.42 - Step 6: Final answer
x = 387,153.76
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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.