Finding the Fourth Proportional to 710,312.36, 980,252.12 and 388,027.80
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Solution
The fourth proportional to 710,312.36, 980,252.12 and 388,027.80 is: 535,489.87
Step by Step Solution
- Step 1: Write the proportion equation
710,312.36 : 980,252.12 = 388,027.80 : x - Step 2: Convert to fraction form
710,312.36/980,252.12 = 388,027.80/x - Step 3: Cross multiply
710,312.36x = 980,252.12 × 388,027.80 - Step 4: Simplify right side
710,312.36x = 380,365,073,568.94 - Step 5: Solve for x
x = 380,365,073,568.94/710,312.36 - Step 6: Final answer
x = 535,489.87
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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.