Finding the Fourth Proportional to 1,298,749.45, 1,948,411.67 and 445,801.99
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Solution
The fourth proportional to 1,298,749.45, 1,948,411.67 and 445,801.99 is: 668,801.67
Step by Step Solution
- Step 1: Write the proportion equation
1,298,749.45 : 1,948,411.67 = 445,801.99 : x - Step 2: Convert to fraction form
1,298,749.45/1,948,411.67 = 445,801.99/x - Step 3: Cross multiply
1,298,749.45x = 1,948,411.67 × 445,801.99 - Step 4: Simplify right side
1,298,749.45x = 868,605,799,825.22 - Step 5: Solve for x
x = 868,605,799,825.22/1,298,749.45 - Step 6: Final answer
x = 668,801.67
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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.