Finding the Fourth Proportional to 1,457,997.77, 2,012,038.18 and 813,418.09
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Solution
The fourth proportional to 1,457,997.77, 2,012,038.18 and 813,418.09 is: 1,122,517.66
Step by Step Solution
- Step 1: Write the proportion equation
1,457,997.77 : 2,012,038.18 = 813,418.09 : x - Step 2: Convert to fraction form
1,457,997.77/2,012,038.18 = 813,418.09/x - Step 3: Cross multiply
1,457,997.77x = 2,012,038.18 × 813,418.09 - Step 4: Simplify right side
1,457,997.77x = 1,636,628,246,319.04 - Step 5: Solve for x
x = 1,636,628,246,319.04/1,457,997.77 - Step 6: Final answer
x = 1,122,517.66
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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.