Finding the Fourth Proportional to 1,580,462.75, 2,181,038.81 and 855,310.66
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Solution
The fourth proportional to 1,580,462.75, 2,181,038.81 and 855,310.66 is: 1,180,328.82
Step by Step Solution
- Step 1: Write the proportion equation
1,580,462.75 : 2,181,038.81 = 855,310.66 : x - Step 2: Convert to fraction form
1,580,462.75/2,181,038.81 = 855,310.66/x - Step 3: Cross multiply
1,580,462.75x = 2,181,038.81 × 855,310.66 - Step 4: Simplify right side
1,580,462.75x = 1,865,465,734,337.56 - Step 5: Solve for x
x = 1,865,465,734,337.56/1,580,462.75 - Step 6: Final answer
x = 1,180,328.82
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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.