Finding the Fourth Proportional to 589,853.42, 813,989.98 and 331,730.31
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Solution
The fourth proportional to 589,853.42, 813,989.98 and 331,730.31 is: 457,783.48
Step by Step Solution
- Step 1: Write the proportion equation
589,853.42 : 813,989.98 = 331,730.31 : x - Step 2: Convert to fraction form
589,853.42/813,989.98 = 331,730.31/x - Step 3: Cross multiply
589,853.42x = 813,989.98 × 331,730.31 - Step 4: Simplify right side
589,853.42x = 270,025,150,513.06 - Step 5: Solve for x
x = 270,025,150,513.06/589,853.42 - Step 6: Final answer
x = 457,783.48
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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.