Finding the Fourth Proportional to 1,664,943.12, 2,297,637.68 and 901,012.56
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Solution
The fourth proportional to 1,664,943.12, 2,297,637.68 and 901,012.56 is: 1,243,406.09
Step by Step Solution
- Step 1: Write the proportion equation
1,664,943.12 : 2,297,637.68 = 901,012.56 : x - Step 2: Convert to fraction form
1,664,943.12/2,297,637.68 = 901,012.56/x - Step 3: Cross multiply
1,664,943.12x = 2,297,637.68 × 901,012.56 - Step 4: Simplify right side
1,664,943.12x = 2,070,200,408,009.26 - Step 5: Solve for x
x = 2,070,200,408,009.26/1,664,943.12 - Step 6: Final answer
x = 1,243,406.09
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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.