Finding the Fourth Proportional to 710,778.60, 980,859.99 and 388,491.00
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Solution
The fourth proportional to 710,778.60, 980,859.99 and 388,491.00 is: 536,109.67
Step by Step Solution
- Step 1: Write the proportion equation
710,778.60 : 980,859.99 = 388,491.00 : x - Step 2: Convert to fraction form
710,778.60/980,859.99 = 388,491.00/x - Step 3: Cross multiply
710,778.60x = 980,859.99 × 388,491.00 - Step 4: Simplify right side
710,778.60x = 381,055,278,366.06 - Step 5: Solve for x
x = 381,055,278,366.06/710,778.60 - Step 6: Final answer
x = 536,109.67
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.