Finding the Fourth Proportional to 1,238,865.76, 1,858,294.99 and 340,308.42
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Solution
The fourth proportional to 1,238,865.76, 1,858,294.99 and 340,308.42 is: 510,461.63
Step by Step Solution
- Step 1: Write the proportion equation
1,238,865.76 : 1,858,294.99 = 340,308.42 : x - Step 2: Convert to fraction form
1,238,865.76/1,858,294.99 = 340,308.42/x - Step 3: Cross multiply
1,238,865.76x = 1,858,294.99 × 340,308.42 - Step 4: Simplify right side
1,238,865.76x = 632,393,431,940.82 - Step 5: Solve for x
x = 632,393,431,940.82/1,238,865.76 - Step 6: Final answer
x = 510,461.63
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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.