Finding the Fourth Proportional to 1,403,609.24, 2,105,394.30 and 338,642.36
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Solution
The fourth proportional to 1,403,609.24, 2,105,394.30 and 338,642.36 is: 507,958.82
Step by Step Solution
- Step 1: Write the proportion equation
1,403,609.24 : 2,105,394.30 = 338,642.36 : x - Step 2: Convert to fraction form
1,403,609.24/2,105,394.30 = 338,642.36/x - Step 3: Cross multiply
1,403,609.24x = 2,105,394.30 × 338,642.36 - Step 4: Simplify right side
1,403,609.24x = 712,975,694,482.55 - Step 5: Solve for x
x = 712,975,694,482.55/1,403,609.24 - Step 6: Final answer
x = 507,958.82
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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.