Finding the Fourth Proportional to 771,680.14, 1,064,962.84 and 432,145.42
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Solution
The fourth proportional to 771,680.14, 1,064,962.84 and 432,145.42 is: 596,385.46
Step by Step Solution
- Step 1: Write the proportion equation
771,680.14 : 1,064,962.84 = 432,145.42 : x - Step 2: Convert to fraction form
771,680.14/1,064,962.84 = 432,145.42/x - Step 3: Cross multiply
771,680.14x = 1,064,962.84 × 432,145.42 - Step 4: Simplify right side
771,680.14x = 460,218,808,451.38 - Step 5: Solve for x
x = 460,218,808,451.38/771,680.14 - Step 6: Final answer
x = 596,385.46
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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.