Finding the Fourth Proportional to 1,037,678.99, 1,431,993.30 and 578,793.20
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Solution
The fourth proportional to 1,037,678.99, 1,431,993.30 and 578,793.20 is: 798,732.55
Step by Step Solution
- Step 1: Write the proportion equation
1,037,678.99 : 1,431,993.30 = 578,793.20 : x - Step 2: Convert to fraction form
1,037,678.99/1,431,993.30 = 578,793.20/x - Step 3: Cross multiply
1,037,678.99x = 1,431,993.30 × 578,793.20 - Step 4: Simplify right side
1,037,678.99x = 828,827,977,325.59 - Step 5: Solve for x
x = 828,827,977,325.59/1,037,678.99 - Step 6: Final answer
x = 798,732.55
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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.