Finding the Fourth Proportional to 520,239.65, 717,988.99 and 293,899.73
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Solution
The fourth proportional to 520,239.65, 717,988.99 and 293,899.73 is: 405,614.55
Step by Step Solution
- Step 1: Write the proportion equation
520,239.65 : 717,988.99 = 293,899.73 : x - Step 2: Convert to fraction form
520,239.65/717,988.99 = 293,899.73/x - Step 3: Cross multiply
520,239.65x = 717,988.99 × 293,899.73 - Step 4: Simplify right side
520,239.65x = 211,016,767,448.78 - Step 5: Solve for x
x = 211,016,767,448.78/520,239.65 - Step 6: Final answer
x = 405,614.55
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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.