Finding the Fourth Proportional to 1,675,642.28, 2,312,317.26 and 911,698.88
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Solution
The fourth proportional to 1,675,642.28, 2,312,317.26 and 911,698.88 is: 1,258,106.87
Step by Step Solution
- Step 1: Write the proportion equation
1,675,642.28 : 2,312,317.26 = 911,698.88 : x - Step 2: Convert to fraction form
1,675,642.28/2,312,317.26 = 911,698.88/x - Step 3: Cross multiply
1,675,642.28x = 2,312,317.26 × 911,698.88 - Step 4: Simplify right side
1,675,642.28x = 2,108,137,056,146.67 - Step 5: Solve for x
x = 2,108,137,056,146.67/1,675,642.28 - Step 6: Final answer
x = 1,258,106.87
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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.