Finding the Fourth Proportional to 554,425.08, 765,102.90 and 312,709.62
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Solution
The fourth proportional to 554,425.08, 765,102.90 and 312,709.62 is: 431,537.18
Step by Step Solution
- Step 1: Write the proportion equation
554,425.08 : 765,102.90 = 312,709.62 : x - Step 2: Convert to fraction form
554,425.08/765,102.90 = 312,709.62/x - Step 3: Cross multiply
554,425.08x = 765,102.90 × 312,709.62 - Step 4: Simplify right side
554,425.08x = 239,255,037,119.90 - Step 5: Solve for x
x = 239,255,037,119.90/554,425.08 - Step 6: Final answer
x = 431,537.18
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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.