Finding the Fourth Proportional to 517,590.95, 776,396.75 and 138,511.08
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Solution
The fourth proportional to 517,590.95, 776,396.75 and 138,511.08 is: 207,769.38
Step by Step Solution
- Step 1: Write the proportion equation
517,590.95 : 776,396.75 = 138,511.08 : x - Step 2: Convert to fraction form
517,590.95/776,396.75 = 138,511.08/x - Step 3: Cross multiply
517,590.95x = 776,396.75 × 138,511.08 - Step 4: Simplify right side
517,590.95x = 107,539,551,658.44 - Step 5: Solve for x
x = 107,539,551,658.44/517,590.95 - Step 6: Final answer
x = 207,769.38
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1.5x scale
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.