Finding the Fourth Proportional to 878,122.64, 1,317,378.36 and 279,266.96
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Solution
The fourth proportional to 878,122.64, 1,317,378.36 and 279,266.96 is: 418,962.26
Step by Step Solution
- Step 1: Write the proportion equation
878,122.64 : 1,317,378.36 = 279,266.96 : x - Step 2: Convert to fraction form
878,122.64/1,317,378.36 = 279,266.96/x - Step 3: Cross multiply
878,122.64x = 1,317,378.36 × 279,266.96 - Step 4: Simplify right side
878,122.64x = 367,900,249,766.99 - Step 5: Solve for x
x = 367,900,249,766.99/878,122.64 - Step 6: Final answer
x = 418,962.26
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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.