Finding the Fourth Proportional to 1,420,125.99, 2,131,246.99 and 1,042,023.76
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Solution
The fourth proportional to 1,420,125.99, 2,131,246.99 and 1,042,023.76 is: 1,563,811.96
Step by Step Solution
- Step 1: Write the proportion equation
1,420,125.99 : 2,131,246.99 = 1,042,023.76 : x - Step 2: Convert to fraction form
1,420,125.99/2,131,246.99 = 1,042,023.76/x - Step 3: Cross multiply
1,420,125.99x = 2,131,246.99 × 1,042,023.76 - Step 4: Simplify right side
1,420,125.99x = 2,220,809,997,982.89 - Step 5: Solve for x
x = 2,220,809,997,982.89/1,420,125.99 - Step 6: Final answer
x = 1,563,811.96
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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.