Finding the Fourth Proportional to 513,621.99, 708,794.51 and 287,267.49
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Solution
The fourth proportional to 513,621.99, 708,794.51 and 287,267.49 is: 396,426.99
Step by Step Solution
- Step 1: Write the proportion equation
513,621.99 : 708,794.51 = 287,267.49 : x - Step 2: Convert to fraction form
513,621.99/708,794.51 = 287,267.49/x - Step 3: Cross multiply
513,621.99x = 708,794.51 × 287,267.49 - Step 4: Simplify right side
513,621.99x = 203,613,618,377.14 - Step 5: Solve for x
x = 203,613,618,377.14/513,621.99 - Step 6: Final answer
x = 396,426.99
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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.