Finding the Fourth Proportional to 1,241,989.20, 1,860,687.45 and 707,923.80
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Solution
The fourth proportional to 1,241,989.20, 1,860,687.45 and 707,923.80 is: 1,060,576.80
Step by Step Solution
- Step 1: Write the proportion equation
1,241,989.20 : 1,860,687.45 = 707,923.80 : x - Step 2: Convert to fraction form
1,241,989.20/1,860,687.45 = 707,923.80/x - Step 3: Cross multiply
1,241,989.20x = 1,860,687.45 × 707,923.80 - Step 4: Simplify right side
1,241,989.20x = 1,317,224,930,216.31 - Step 5: Solve for x
x = 1,317,224,930,216.31/1,241,989.20 - Step 6: Final answer
x = 1,060,576.80
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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.