Finding the Fourth Proportional to 3,840,561.18, 5,299,522.49 and 2,121,579.18
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Solution
The fourth proportional to 3,840,561.18, 5,299,522.49 and 2,121,579.18 is: 2,927,529.61
Step by Step Solution
- Step 1: Write the proportion equation
3,840,561.18 : 5,299,522.49 = 2,121,579.18 : x - Step 2: Convert to fraction form
3,840,561.18/5,299,522.49 = 2,121,579.18/x - Step 3: Cross multiply
3,840,561.18x = 5,299,522.49 × 2,121,579.18 - Step 4: Simplify right side
3,840,561.18x = 11,243,356,584,029.71 - Step 5: Solve for x
x = 11,243,356,584,029.71/3,840,561.18 - Step 6: Final answer
x = 2,927,529.61
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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.