Finding the Fourth Proportional to 710,636.97, 980,681.58 and 388,347.12
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Solution
The fourth proportional to 710,636.97, 980,681.58 and 388,347.12 is: 535,920.43
Step by Step Solution
- Step 1: Write the proportion equation
710,636.97 : 980,681.58 = 388,347.12 : x - Step 2: Convert to fraction form
710,636.97/980,681.58 = 388,347.12/x - Step 3: Cross multiply
710,636.97x = 980,681.58 × 388,347.12 - Step 4: Simplify right side
710,636.97x = 380,844,867,230.05 - Step 5: Solve for x
x = 380,844,867,230.05/710,636.97 - Step 6: Final answer
x = 535,920.43
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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.