Finding the Fourth Proportional to 911,318.19, 1,257,772.63 and 529,566.41
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Solution
The fourth proportional to 911,318.19, 1,257,772.63 and 529,566.41 is: 730,890.86
Step by Step Solution
- Step 1: Write the proportion equation
911,318.19 : 1,257,772.63 = 529,566.41 : x - Step 2: Convert to fraction form
911,318.19/1,257,772.63 = 529,566.41/x - Step 3: Cross multiply
911,318.19x = 1,257,772.63 × 529,566.41 - Step 4: Simplify right side
911,318.19x = 666,074,133,493.25 - Step 5: Solve for x
x = 666,074,133,493.25/911,318.19 - Step 6: Final answer
x = 730,890.86
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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.