Finding the Fourth Proportional to 628,041.96, 866,679.36 and 356,134.68
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Solution
The fourth proportional to 628,041.96, 866,679.36 and 356,134.68 is: 491,455.34
Step by Step Solution
- Step 1: Write the proportion equation
628,041.96 : 866,679.36 = 356,134.68 : x - Step 2: Convert to fraction form
628,041.96/866,679.36 = 356,134.68/x - Step 3: Cross multiply
628,041.96x = 866,679.36 × 356,134.68 - Step 4: Simplify right side
628,041.96x = 308,654,576,536.21 - Step 5: Solve for x
x = 308,654,576,536.21/628,041.96 - Step 6: Final answer
x = 491,455.34
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1.5x scale
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.