Finding the Fourth Proportional to 1,768,618.32, 2,438,959.36 and 1,122,917.50
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Solution
The fourth proportional to 1,768,618.32, 2,438,959.36 and 1,122,917.50 is: 1,548,525.26
Step by Step Solution
- Step 1: Write the proportion equation
1,768,618.32 : 2,438,959.36 = 1,122,917.50 : x - Step 2: Convert to fraction form
1,768,618.32/2,438,959.36 = 1,122,917.50/x - Step 3: Cross multiply
1,768,618.32x = 2,438,959.36 × 1,122,917.50 - Step 4: Simplify right side
1,768,618.32x = 2,738,750,147,132.80 - Step 5: Solve for x
x = 2,738,750,147,132.80/1,768,618.32 - Step 6: Final answer
x = 1,548,525.26
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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.