Finding the Fourth Proportional to 513,301.78, 708,022.74 and 329,249.08
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Solution
The fourth proportional to 513,301.78, 708,022.74 and 329,249.08 is: 454,149.67
Step by Step Solution
- Step 1: Write the proportion equation
513,301.78 : 708,022.74 = 329,249.08 : x - Step 2: Convert to fraction form
513,301.78/708,022.74 = 329,249.08/x - Step 3: Cross multiply
513,301.78x = 708,022.74 × 329,249.08 - Step 4: Simplify right side
513,301.78x = 233,115,835,764.08 - Step 5: Solve for x
x = 233,115,835,764.08/513,301.78 - Step 6: Final answer
x = 454,149.67
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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.