Finding the Fourth Proportional to 1,689,208.12, 2,331,107.76 and 925,289.20
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Solution
The fourth proportional to 1,689,208.12, 2,331,107.76 and 925,289.20 is: 1,276,899.40
Step by Step Solution
- Step 1: Write the proportion equation
1,689,208.12 : 2,331,107.76 = 925,289.20 : x - Step 2: Convert to fraction form
1,689,208.12/2,331,107.76 = 925,289.20/x - Step 3: Cross multiply
1,689,208.12x = 2,331,107.76 × 925,289.20 - Step 4: Simplify right side
1,689,208.12x = 2,156,948,834,364.19 - Step 5: Solve for x
x = 2,156,948,834,364.19/1,689,208.12 - Step 6: Final answer
x = 1,276,899.40
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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.