Finding the Fourth Proportional to 1,232,372.80, 1,700,655.20 and 688,516.08
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Solution
The fourth proportional to 1,232,372.80, 1,700,655.20 and 688,516.08 is: 950,141.43
Step by Step Solution
- Step 1: Write the proportion equation
1,232,372.80 : 1,700,655.20 = 688,516.08 : x - Step 2: Convert to fraction form
1,232,372.80/1,700,655.20 = 688,516.08/x - Step 3: Cross multiply
1,232,372.80x = 1,700,655.20 × 688,516.08 - Step 4: Simplify right side
1,232,372.80x = 1,170,928,451,735.62 - Step 5: Solve for x
x = 1,170,928,451,735.62/1,232,372.80 - Step 6: Final answer
x = 950,141.43
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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.