Finding the Fourth Proportional to 788,221.44, 1,087,355.88 and 465,775.56
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Solution
The fourth proportional to 788,221.44, 1,087,355.88 and 465,775.56 is: 642,539.99
Step by Step Solution
- Step 1: Write the proportion equation
788,221.44 : 1,087,355.88 = 465,775.56 : x - Step 2: Convert to fraction form
788,221.44/1,087,355.88 = 465,775.56/x - Step 3: Cross multiply
788,221.44x = 1,087,355.88 × 465,775.56 - Step 4: Simplify right side
788,221.44x = 506,463,793,926.29 - Step 5: Solve for x
x = 506,463,793,926.29/788,221.44 - Step 6: Final answer
x = 642,539.99
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1.5x scale
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.