Finding the Fourth Proportional to 778,956.70, 1,074,964.62 and 439,446.82
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Solution
The fourth proportional to 778,956.70, 1,074,964.62 and 439,446.82 is: 606,439.08
Step by Step Solution
- Step 1: Write the proportion equation
778,956.70 : 1,074,964.62 = 439,446.82 : x - Step 2: Convert to fraction form
778,956.70/1,074,964.62 = 439,446.82/x - Step 3: Cross multiply
778,956.70x = 1,074,964.62 × 439,446.82 - Step 4: Simplify right side
778,956.70x = 472,389,783,871.51 - Step 5: Solve for x
x = 472,389,783,871.51/778,956.70 - Step 6: Final answer
x = 606,439.08
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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.