Finding the Fourth Proportional to 627,139.98, 865,452.50 and 340,660.28
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Solution
The fourth proportional to 627,139.98, 865,452.50 and 340,660.28 is: 470,110.82
Step by Step Solution
- Step 1: Write the proportion equation
627,139.98 : 865,452.50 = 340,660.28 : x - Step 2: Convert to fraction form
627,139.98/865,452.50 = 340,660.28/x - Step 3: Cross multiply
627,139.98x = 865,452.50 × 340,660.28 - Step 4: Simplify right side
627,139.98x = 294,825,290,976.70 - Step 5: Solve for x
x = 294,825,290,976.70/627,139.98 - Step 6: Final answer
x = 470,110.82
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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.