Finding the Fourth Proportional to 2,120,487.74, 2,927,289.44 and 1,305,390.11
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Solution
The fourth proportional to 2,120,487.74, 2,927,289.44 and 1,305,390.11 is: 1,802,064.03
Step by Step Solution
- Step 1: Write the proportion equation
2,120,487.74 : 2,927,289.44 = 1,305,390.11 : x - Step 2: Convert to fraction form
2,120,487.74/2,927,289.44 = 1,305,390.11/x - Step 3: Cross multiply
2,120,487.74x = 2,927,289.44 × 1,305,390.11 - Step 4: Simplify right side
2,120,487.74x = 3,821,254,672,710.47 - Step 5: Solve for x
x = 3,821,254,672,710.47/2,120,487.74 - Step 6: Final answer
x = 1,802,064.03
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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.