Finding the Fourth Proportional to 520,854.98, 718,775.97 and 294,508.58
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Solution
The fourth proportional to 520,854.98, 718,775.97 and 294,508.58 is: 406,419.63
Step by Step Solution
- Step 1: Write the proportion equation
520,854.98 : 718,775.97 = 294,508.58 : x - Step 2: Convert to fraction form
520,854.98/718,775.97 = 294,508.58/x - Step 3: Cross multiply
520,854.98x = 718,775.97 × 294,508.58 - Step 4: Simplify right side
520,854.98x = 211,685,686,668.94 - Step 5: Solve for x
x = 211,685,686,668.94/520,854.98 - Step 6: Final answer
x = 406,419.63
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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.