Finding the Fourth Proportional to 2,175,813.23, 3,263,719.23 and 679,905.23
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Solution
The fourth proportional to 2,175,813.23, 3,263,719.23 and 679,905.23 is: 1,019,857.65
Step by Step Solution
- Step 1: Write the proportion equation
2,175,813.23 : 3,263,719.23 = 679,905.23 : x - Step 2: Convert to fraction form
2,175,813.23/3,263,719.23 = 679,905.23/x - Step 3: Cross multiply
2,175,813.23x = 3,263,719.23 × 679,905.23 - Step 4: Simplify right side
2,175,813.23x = 2,219,019,757,409.98 - Step 5: Solve for x
x = 2,219,019,757,409.98/2,175,813.23 - Step 6: Final answer
x = 1,019,857.65
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1.5x scale
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.