Finding the Fourth Proportional to 1,240,106.70, 1,860,161.40 and 492,152.70
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Solution
The fourth proportional to 1,240,106.70, 1,860,161.40 and 492,152.70 is: 738,229.59
Step by Step Solution
- Step 1: Write the proportion equation
1,240,106.70 : 1,860,161.40 = 492,152.70 : x - Step 2: Convert to fraction form
1,240,106.70/1,860,161.40 = 492,152.70/x - Step 3: Cross multiply
1,240,106.70x = 1,860,161.40 × 492,152.70 - Step 4: Simplify right side
1,240,106.70x = 915,483,455,445.78 - Step 5: Solve for x
x = 915,483,455,445.78/1,240,106.70 - Step 6: Final answer
x = 738,229.59
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1.5x scale
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.