Finding the Fourth Proportional to 1,122,198.13, 1,683,533.77 and 363,980.65
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Solution
The fourth proportional to 1,122,198.13, 1,683,533.77 and 363,980.65 is: 546,047.70
Step by Step Solution
- Step 1: Write the proportion equation
1,122,198.13 : 1,683,533.77 = 363,980.65 : x - Step 2: Convert to fraction form
1,122,198.13/1,683,533.77 = 363,980.65/x - Step 3: Cross multiply
1,122,198.13x = 1,683,533.77 × 363,980.65 - Step 4: Simplify right side
1,122,198.13x = 612,773,708,339.07 - Step 5: Solve for x
x = 612,773,708,339.07/1,122,198.13 - Step 6: Final answer
x = 546,047.70
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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.