Finding the Fourth Proportional to 3,630,615.48, 5,010,208.02 and 1,998,988.74
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Solution
The fourth proportional to 3,630,615.48, 5,010,208.02 and 1,998,988.74 is: 2,758,581.70
Step by Step Solution
- Step 1: Write the proportion equation
3,630,615.48 : 5,010,208.02 = 1,998,988.74 : x - Step 2: Convert to fraction form
3,630,615.48/5,010,208.02 = 1,998,988.74/x - Step 3: Cross multiply
3,630,615.48x = 5,010,208.02 × 1,998,988.74 - Step 4: Simplify right side
3,630,615.48x = 10,015,349,417,037.69 - Step 5: Solve for x
x = 10,015,349,417,037.69/3,630,615.48 - Step 6: Final answer
x = 2,758,581.70
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1.5x scale
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.