Finding the Fourth Proportional to 1,196,298.68, 1,651,040.70 and 686,990.12
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Solution
The fourth proportional to 1,196,298.68, 1,651,040.70 and 686,990.12 is: 948,131.66
Step by Step Solution
- Step 1: Write the proportion equation
1,196,298.68 : 1,651,040.70 = 686,990.12 : x - Step 2: Convert to fraction form
1,196,298.68/1,651,040.70 = 686,990.12/x - Step 3: Cross multiply
1,196,298.68x = 1,651,040.70 × 686,990.12 - Step 4: Simplify right side
1,196,298.68x = 1,134,248,648,617.88 - Step 5: Solve for x
x = 1,134,248,648,617.88/1,196,298.68 - Step 6: Final answer
x = 948,131.66
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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.