Finding the Fourth Proportional to 513,074.92, 708,044.35 and 286,720.42
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Solution
The fourth proportional to 513,074.92, 708,044.35 and 286,720.42 is: 395,674.72
Step by Step Solution
- Step 1: Write the proportion equation
513,074.92 : 708,044.35 = 286,720.42 : x - Step 2: Convert to fraction form
513,074.92/708,044.35 = 286,720.42/x - Step 3: Cross multiply
513,074.92x = 708,044.35 × 286,720.42 - Step 4: Simplify right side
513,074.92x = 203,010,773,410.63 - Step 5: Solve for x
x = 203,010,773,410.63/513,074.92 - Step 6: Final answer
x = 395,674.72
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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.