Finding the Fourth Proportional to 1,438,750.26, 2,157,658.14 and 478,948.05
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Solution
The fourth proportional to 1,438,750.26, 2,157,658.14 and 478,948.05 is: 718,266.53
Step by Step Solution
- Step 1: Write the proportion equation
1,438,750.26 : 2,157,658.14 = 478,948.05 : x - Step 2: Convert to fraction form
1,438,750.26/2,157,658.14 = 478,948.05/x - Step 3: Cross multiply
1,438,750.26x = 2,157,658.14 × 478,948.05 - Step 4: Simplify right side
1,438,750.26x = 1,033,406,158,719.63 - Step 5: Solve for x
x = 1,033,406,158,719.63/1,438,750.26 - Step 6: Final answer
x = 718,266.53
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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.