Finding the Fourth Proportional to 521,558.40, 719,793.60 and 330,502.08
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Solution
The fourth proportional to 521,558.40, 719,793.60 and 330,502.08 is: 456,120.12
Step by Step Solution
- Step 1: Write the proportion equation
521,558.40 : 719,793.60 = 330,502.08 : x - Step 2: Convert to fraction form
521,558.40/719,793.60 = 330,502.08/x - Step 3: Cross multiply
521,558.40x = 719,793.60 × 330,502.08 - Step 4: Simplify right side
521,558.40x = 237,893,281,970.69 - Step 5: Solve for x
x = 237,893,281,970.69/521,558.40 - Step 6: Final answer
x = 456,120.12
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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.