Finding the Fourth Proportional to 1,236,731.12, 1,706,737.94 and 692,871.40
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Solution
The fourth proportional to 1,236,731.12, 1,706,737.94 and 692,871.40 is: 956,189.98
Step by Step Solution
- Step 1: Write the proportion equation
1,236,731.12 : 1,706,737.94 = 692,871.40 : x - Step 2: Convert to fraction form
1,236,731.12/1,706,737.94 = 692,871.40/x - Step 3: Cross multiply
1,236,731.12x = 1,706,737.94 × 692,871.40 - Step 4: Simplify right side
1,236,731.12x = 1,182,549,905,920.92 - Step 5: Solve for x
x = 1,182,549,905,920.92/1,236,731.12 - Step 6: Final answer
x = 956,189.98
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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.