Finding the Fourth Proportional to 644,166.96, 888,933.18 and 357,679.68
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Solution
The fourth proportional to 644,166.96, 888,933.18 and 357,679.68 is: 493,588.39
Step by Step Solution
- Step 1: Write the proportion equation
644,166.96 : 888,933.18 = 357,679.68 : x - Step 2: Convert to fraction form
644,166.96/888,933.18 = 357,679.68/x - Step 3: Cross multiply
644,166.96x = 888,933.18 × 357,679.68 - Step 4: Simplify right side
644,166.96x = 317,953,335,363.78 - Step 5: Solve for x
x = 317,953,335,363.78/644,166.96 - Step 6: Final answer
x = 493,588.39
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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.