Finding the Fourth Proportional to 1,296,110.70, 1,944,166.05 and 1,221,315.30
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Solution
The fourth proportional to 1,296,110.70, 1,944,166.05 and 1,221,315.30 is: 1,831,972.95
Step by Step Solution
- Step 1: Write the proportion equation
1,296,110.70 : 1,944,166.05 = 1,221,315.30 : x - Step 2: Convert to fraction form
1,296,110.70/1,944,166.05 = 1,221,315.30/x - Step 3: Cross multiply
1,296,110.70x = 1,944,166.05 × 1,221,315.30 - Step 4: Simplify right side
1,296,110.70x = 2,374,439,742,605.57 - Step 5: Solve for x
x = 2,374,439,742,605.57/1,296,110.70 - Step 6: Final answer
x = 1,831,972.95
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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.