Finding the Fourth Proportional to 513,148.71, 708,143.44 and 286,794.21
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Solution
The fourth proportional to 513,148.71, 708,143.44 and 286,794.21 is: 395,775.02
Step by Step Solution
- Step 1: Write the proportion equation
513,148.71 : 708,143.44 = 286,794.21 : x - Step 2: Convert to fraction form
513,148.71/708,143.44 = 286,794.21/x - Step 3: Cross multiply
513,148.71x = 708,143.44 × 286,794.21 - Step 4: Simplify right side
513,148.71x = 203,091,438,441.48 - Step 5: Solve for x
x = 203,091,438,441.48/513,148.71 - Step 6: Final answer
x = 395,775.02
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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.