Finding the Fourth Proportional to 1,412,743.55, 2,119,115.52 and 415,471.55
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Solution
The fourth proportional to 1,412,743.55, 2,119,115.52 and 415,471.55 is: 623,207.38
Step by Step Solution
- Step 1: Write the proportion equation
1,412,743.55 : 2,119,115.52 = 415,471.55 : x - Step 2: Convert to fraction form
1,412,743.55/2,119,115.52 = 415,471.55/x - Step 3: Cross multiply
1,412,743.55x = 2,119,115.52 × 415,471.55 - Step 4: Simplify right side
1,412,743.55x = 880,432,199,127.88 - Step 5: Solve for x
x = 880,432,199,127.88/1,412,743.55 - Step 6: Final answer
x = 623,207.38
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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.