Finding the Fourth Proportional to 3,903,631.48, 5,387,579.22 and 2,249,458.12
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Solution
The fourth proportional to 3,903,631.48, 5,387,579.22 and 2,249,458.12 is: 3,104,579.39
Step by Step Solution
- Step 1: Write the proportion equation
3,903,631.48 : 5,387,579.22 = 2,249,458.12 : x - Step 2: Convert to fraction form
3,903,631.48/5,387,579.22 = 2,249,458.12/x - Step 3: Cross multiply
3,903,631.48x = 5,387,579.22 × 2,249,458.12 - Step 4: Simplify right side
3,903,631.48x = 12,119,133,823,572.27 - Step 5: Solve for x
x = 12,119,133,823,572.27/3,903,631.48 - Step 6: Final answer
x = 3,104,579.39
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1.5x scale
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.