Finding the Fourth Proportional to 1,011,529, 1,395,922.98 and 558,862.12
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Solution
The fourth proportional to 1,011,529, 1,395,922.98 and 558,862.12 is: 771,236.89
Step by Step Solution
- Step 1: Write the proportion equation
1,011,529 : 1,395,922.98 = 558,862.12 : x - Step 2: Convert to fraction form
1,011,529/1,395,922.98 = 558,862.12/x - Step 3: Cross multiply
1,011,529x = 1,395,922.98 × 558,862.12 - Step 4: Simplify right side
1,011,529x = 780,128,475,959.52 - Step 5: Solve for x
x = 780,128,475,959.52/1,011,529 - Step 6: Final answer
x = 771,236.89
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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.