Finding the Fourth Proportional to 1,638,317.60, 2,457,474.29 and 440,239.93
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Solution
The fourth proportional to 1,638,317.60, 2,457,474.29 and 440,239.93 is: 660,359.32
Step by Step Solution
- Step 1: Write the proportion equation
1,638,317.60 : 2,457,474.29 = 440,239.93 : x - Step 2: Convert to fraction form
1,638,317.60/2,457,474.29 = 440,239.93/x - Step 3: Cross multiply
1,638,317.60x = 2,457,474.29 × 440,239.93 - Step 4: Simplify right side
1,638,317.60x = 1,081,878,294,917.83 - Step 5: Solve for x
x = 1,081,878,294,917.83/1,638,317.60 - Step 6: Final answer
x = 660,359.32
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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.