Finding the Fourth Proportional to 841,868.12, 1,161,779.06 and 479,291.98
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Solution
The fourth proportional to 841,868.12, 1,161,779.06 and 479,291.98 is: 661,423.53
Step by Step Solution
- Step 1: Write the proportion equation
841,868.12 : 1,161,779.06 = 479,291.98 : x - Step 2: Convert to fraction form
841,868.12/1,161,779.06 = 479,291.98/x - Step 3: Cross multiply
841,868.12x = 1,161,779.06 × 479,291.98 - Step 4: Simplify right side
841,868.12x = 556,831,385,989.94 - Step 5: Solve for x
x = 556,831,385,989.94/841,868.12 - Step 6: Final answer
x = 661,423.53
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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.