Finding the Fourth Proportional to 1,768,620.32, 2,438,962.12 and 1,122,919.50
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Solution
The fourth proportional to 1,768,620.32, 2,438,962.12 and 1,122,919.50 is: 1,548,528.02
Step by Step Solution
- Step 1: Write the proportion equation
1,768,620.32 : 2,438,962.12 = 1,122,919.50 : x - Step 2: Convert to fraction form
1,768,620.32/2,438,962.12 = 1,122,919.50/x - Step 3: Cross multiply
1,768,620.32x = 2,438,962.12 × 1,122,919.50 - Step 4: Simplify right side
1,768,620.32x = 2,738,758,124,309.34 - Step 5: Solve for x
x = 2,738,758,124,309.34/1,768,620.32 - Step 6: Final answer
x = 1,548,528.02
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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.