Finding the Fourth Proportional to 486,541.30, 729,702.60 and 319,235.80
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Solution
The fourth proportional to 486,541.30, 729,702.60 and 319,235.80 is: 478,781.95
Step by Step Solution
- Step 1: Write the proportion equation
486,541.30 : 729,702.60 = 319,235.80 : x - Step 2: Convert to fraction form
486,541.30/729,702.60 = 319,235.80/x - Step 3: Cross multiply
486,541.30x = 729,702.60 × 319,235.80 - Step 4: Simplify right side
486,541.30x = 232,947,193,273.08 - Step 5: Solve for x
x = 232,947,193,273.08/486,541.30 - Step 6: Final answer
x = 478,781.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.