Finding the Fourth Proportional to 817,998.80, 1,226,365.99 and 412,982.57
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Solution
The fourth proportional to 817,998.80, 1,226,365.99 and 412,982.57 is: 619,154.68
Step by Step Solution
- Step 1: Write the proportion equation
817,998.80 : 1,226,365.99 = 412,982.57 : x - Step 2: Convert to fraction form
817,998.80/1,226,365.99 = 412,982.57/x - Step 3: Cross multiply
817,998.80x = 1,226,365.99 × 412,982.57 - Step 4: Simplify right side
817,998.80x = 506,467,780,344.25 - Step 5: Solve for x
x = 506,467,780,344.25/817,998.80 - Step 6: Final answer
x = 619,154.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.