Finding the Fourth Proportional to 2,087,903.74, 2,881,258.17 and 1,228,519.66
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Solution
The fourth proportional to 2,087,903.74, 2,881,258.17 and 1,228,519.66 is: 1,695,328.30
Step by Step Solution
- Step 1: Write the proportion equation
2,087,903.74 : 2,881,258.17 = 1,228,519.66 : x - Step 2: Convert to fraction form
2,087,903.74/2,881,258.17 = 1,228,519.66/x - Step 3: Cross multiply
2,087,903.74x = 2,881,258.17 × 1,228,519.66 - Step 4: Simplify right side
2,087,903.74x = 3,539,682,307,380.62 - Step 5: Solve for x
x = 3,539,682,307,380.62/2,087,903.74 - Step 6: Final answer
x = 1,695,328.30
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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.