Finding the Fourth Proportional to 762,963.12, 1,052,867.88 and 418,798.80
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Solution
The fourth proportional to 762,963.12, 1,052,867.88 and 418,798.80 is: 577,930.69
Step by Step Solution
- Step 1: Write the proportion equation
762,963.12 : 1,052,867.88 = 418,798.80 : x - Step 2: Convert to fraction form
762,963.12/1,052,867.88 = 418,798.80/x - Step 3: Cross multiply
762,963.12x = 1,052,867.88 × 418,798.80 - Step 4: Simplify right side
762,963.12x = 440,939,804,702.54 - Step 5: Solve for x
x = 440,939,804,702.54/762,963.12 - Step 6: Final answer
x = 577,930.69
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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.