Finding the Fourth Proportional to 1,202,994.18, 1,660,068.41 and 686,727.59
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Solution
The fourth proportional to 1,202,994.18, 1,660,068.41 and 686,727.59 is: 947,647.78
Step by Step Solution
- Step 1: Write the proportion equation
1,202,994.18 : 1,660,068.41 = 686,727.59 : x - Step 2: Convert to fraction form
1,202,994.18/1,660,068.41 = 686,727.59/x - Step 3: Cross multiply
1,202,994.18x = 1,660,068.41 × 686,727.59 - Step 4: Simplify right side
1,202,994.18x = 1,140,014,766,700.45 - Step 5: Solve for x
x = 1,140,014,766,700.45/1,202,994.18 - Step 6: Final answer
x = 947,647.78
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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.