Finding the Fourth Proportional to 710,515.42, 980,518.14 and 388,225.49
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Solution
The fourth proportional to 710,515.42, 980,518.14 and 388,225.49 is: 535,754.92
Step by Step Solution
- Step 1: Write the proportion equation
710,515.42 : 980,518.14 = 388,225.49 : x - Step 2: Convert to fraction form
710,515.42/980,518.14 = 388,225.49/x - Step 3: Cross multiply
710,515.42x = 980,518.14 × 388,225.49 - Step 4: Simplify right side
710,515.42x = 380,662,130,452.80 - Step 5: Solve for x
x = 380,662,130,452.80/710,515.42 - Step 6: Final answer
x = 535,754.92
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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.