Finding the Fourth Proportional to 728,117.70, 1,092,176.55 and 651,135.30
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Solution
The fourth proportional to 728,117.70, 1,092,176.55 and 651,135.30 is: 976,702.95
Step by Step Solution
- Step 1: Write the proportion equation
728,117.70 : 1,092,176.55 = 651,135.30 : x - Step 2: Convert to fraction form
728,117.70/1,092,176.55 = 651,135.30/x - Step 3: Cross multiply
728,117.70x = 1,092,176.55 × 651,135.30 - Step 4: Simplify right side
728,117.70x = 711,154,705,537.22 - Step 5: Solve for x
x = 711,154,705,537.22/728,117.70 - Step 6: Final answer
x = 976,702.95
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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.