Finding the Fourth Proportional to 3,905,959.27, 5,390,445.99 and 2,187,064.75
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Solution
The fourth proportional to 3,905,959.27, 5,390,445.99 and 2,187,064.75 is: 3,018,273.77
Step by Step Solution
- Step 1: Write the proportion equation
3,905,959.27 : 5,390,445.99 = 2,187,064.75 : x - Step 2: Convert to fraction form
3,905,959.27/5,390,445.99 = 2,187,064.75/x - Step 3: Cross multiply
3,905,959.27x = 5,390,445.99 × 2,187,064.75 - Step 4: Simplify right side
3,905,959.27x = 11,789,254,410,189.20 - Step 5: Solve for x
x = 11,789,254,410,189.20/3,905,959.27 - Step 6: Final answer
x = 3,018,273.77
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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.