Finding the Fourth Proportional to 2,111,187.25, 2,913,749.70 and 1,336,888.79
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Solution
The fourth proportional to 2,111,187.25, 2,913,749.70 and 1,336,888.79 is: 1,845,103.66
Step by Step Solution
- Step 1: Write the proportion equation
2,111,187.25 : 2,913,749.70 = 1,336,888.79 : x - Step 2: Convert to fraction form
2,111,187.25/2,913,749.70 = 1,336,888.79/x - Step 3: Cross multiply
2,111,187.25x = 2,913,749.70 × 1,336,888.79 - Step 4: Simplify right side
2,111,187.25x = 3,895,359,318,080.24 - Step 5: Solve for x
x = 3,895,359,318,080.24/2,111,187.25 - Step 6: Final answer
x = 1,845,103.66
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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.