Finding the Fourth Proportional to 710,546.99, 980,561.70 and 388,257.03
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Solution
The fourth proportional to 710,546.99, 980,561.70 and 388,257.03 is: 535,798.45
Step by Step Solution
- Step 1: Write the proportion equation
710,546.99 : 980,561.70 = 388,257.03 : x - Step 2: Convert to fraction form
710,546.99/980,561.70 = 388,257.03/x - Step 3: Cross multiply
710,546.99x = 980,561.70 × 388,257.03 - Step 4: Simplify right side
710,546.99x = 380,709,973,373.75 - Step 5: Solve for x
x = 380,709,973,373.75/710,546.99 - Step 6: Final answer
x = 535,798.45
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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.