Finding the Fourth Proportional to 1,438,907.24, 2,157,854.20 and 479,102.20
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Solution
The fourth proportional to 1,438,907.24, 2,157,854.20 and 479,102.20 is: 718,484.60
Step by Step Solution
- Step 1: Write the proportion equation
1,438,907.24 : 2,157,854.20 = 479,102.20 : x - Step 2: Convert to fraction form
1,438,907.24/2,157,854.20 = 479,102.20/x - Step 3: Cross multiply
1,438,907.24x = 2,157,854.20 × 479,102.20 - Step 4: Simplify right side
1,438,907.24x = 1,033,832,687,906.85 - Step 5: Solve for x
x = 1,033,832,687,906.85/1,438,907.24 - Step 6: Final answer
x = 718,484.60
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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.