Finding the Fourth Proportional to 1,407,986.50, 1,942,306.14 and 890,868.98
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Solution
The fourth proportional to 1,407,986.50, 1,942,306.14 and 890,868.98 is: 1,228,946.65
Step by Step Solution
- Step 1: Write the proportion equation
1,407,986.50 : 1,942,306.14 = 890,868.98 : x - Step 2: Convert to fraction form
1,407,986.50/1,942,306.14 = 890,868.98/x - Step 3: Cross multiply
1,407,986.50x = 1,942,306.14 × 890,868.98 - Step 4: Simplify right side
1,407,986.50x = 1,730,340,292,974.92 - Step 5: Solve for x
x = 1,730,340,292,974.92/1,407,986.50 - Step 6: Final answer
x = 1,228,946.65
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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.