Finding the Fourth Proportional to 1,079,256.35, 1,489,568.74 and 643,701.63
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Solution
The fourth proportional to 1,079,256.35, 1,489,568.74 and 643,701.63 is: 888,424.54
Step by Step Solution
- Step 1: Write the proportion equation
1,079,256.35 : 1,489,568.74 = 643,701.63 : x - Step 2: Convert to fraction form
1,079,256.35/1,489,568.74 = 643,701.63/x - Step 3: Cross multiply
1,079,256.35x = 1,489,568.74 × 643,701.63 - Step 4: Simplify right side
1,079,256.35x = 958,837,829,911.68 - Step 5: Solve for x
x = 958,837,829,911.68/1,079,256.35 - Step 6: Final answer
x = 888,424.54
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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.