Finding the Third Proportional to 430,439.91 and 643,410.84
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Solution
The third proportional to 430,439.91 and 643,410.84 is: 961,754.49
Step by Step Solution
- Step 1: Write the proportion equation
430,439.91 : 643,410.84 = 643,410.84 : x - Step 2: Convert to fraction form
430,439.91/643,410.84 = 643,410.84/x - Step 3: Cross multiply
430,439.91x = 643,410.84 × 643,410.84 - Step 4: Simplify right side
430,439.91x = 413,977,513,855.09 - Step 5: Solve for x
x = 413,977,513,855.09/430,439.91 - Step 6: Final answer
x = 961,754.49
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.