Finding the Fourth Proportional to 832,459.21, 1,148,793.69 and 450,485.99
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Solution
The fourth proportional to 832,459.21, 1,148,793.69 and 450,485.99 is: 621,670.66
Step by Step Solution
- Step 1: Write the proportion equation
832,459.21 : 1,148,793.69 = 450,485.99 : x - Step 2: Convert to fraction form
832,459.21/1,148,793.69 = 450,485.99/x - Step 3: Cross multiply
832,459.21x = 1,148,793.69 × 450,485.99 - Step 4: Simplify right side
832,459.21x = 517,515,462,745.40 - Step 5: Solve for x
x = 517,515,462,745.40/832,459.21 - Step 6: Final answer
x = 621,670.66
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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.