Finding the Fourth Proportional to 1,038,449.80, 1,555,050.30 and 828,497.80
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Solution
The fourth proportional to 1,038,449.80, 1,555,050.30 and 828,497.80 is: 1,240,652.90
Step by Step Solution
- Step 1: Write the proportion equation
1,038,449.80 : 1,555,050.30 = 828,497.80 : x - Step 2: Convert to fraction form
1,038,449.80/1,555,050.30 = 828,497.80/x - Step 3: Cross multiply
1,038,449.80x = 1,555,050.30 × 828,497.80 - Step 4: Simplify right side
1,038,449.80x = 1,288,355,752,439.34 - Step 5: Solve for x
x = 1,288,355,752,439.34/1,038,449.80 - Step 6: Final answer
x = 1,240,652.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.