Finding the Fourth Proportional to 521,624.64, 719,830.08 and 306,717.60
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Solution
The fourth proportional to 521,624.64, 719,830.08 and 306,717.60 is: 423,263.28
Step by Step Solution
- Step 1: Write the proportion equation
521,624.64 : 719,830.08 = 306,717.60 : x - Step 2: Convert to fraction form
521,624.64/719,830.08 = 306,717.60/x - Step 3: Cross multiply
521,624.64x = 719,830.08 × 306,717.60 - Step 4: Simplify right side
521,624.64x = 220,784,554,545.41 - Step 5: Solve for x
x = 220,784,554,545.41/521,624.64 - Step 6: Final answer
x = 423,263.28
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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.