Finding the Fourth Proportional to 710,497.42, 980,493.34 and 388,207.49
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Solution
The fourth proportional to 710,497.42, 980,493.34 and 388,207.49 is: 535,730.10
Step by Step Solution
- Step 1: Write the proportion equation
710,497.42 : 980,493.34 = 388,207.49 : x - Step 2: Convert to fraction form
710,497.42/980,493.34 = 388,207.49/x - Step 3: Cross multiply
710,497.42x = 980,493.34 × 388,207.49 - Step 4: Simplify right side
710,497.42x = 380,634,852,610.13 - Step 5: Solve for x
x = 380,634,852,610.13/710,497.42 - Step 6: Final answer
x = 535,730.10
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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.