Finding the Fourth Proportional to 2,138,567.75, 3,207,823.95 and 519,349.85
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Solution
The fourth proportional to 2,138,567.75, 3,207,823.95 and 519,349.85 is: 779,018.05
Step by Step Solution
- Step 1: Write the proportion equation
2,138,567.75 : 3,207,823.95 = 519,349.85 : x - Step 2: Convert to fraction form
2,138,567.75/3,207,823.95 = 519,349.85/x - Step 3: Cross multiply
2,138,567.75x = 3,207,823.95 × 519,349.85 - Step 4: Simplify right side
2,138,567.75x = 1,665,982,887,258.91 - Step 5: Solve for x
x = 1,665,982,887,258.91/2,138,567.75 - Step 6: Final answer
x = 779,018.05
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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.