Finding the Fourth Proportional to 1,565,028.51, 2,159,761.74 and 911,637.75
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Solution
The fourth proportional to 1,565,028.51, 2,159,761.74 and 911,637.75 is: 1,258,073.14
Step by Step Solution
- Step 1: Write the proportion equation
1,565,028.51 : 2,159,761.74 = 911,637.75 : x - Step 2: Convert to fraction form
1,565,028.51/2,159,761.74 = 911,637.75/x - Step 3: Cross multiply
1,565,028.51x = 2,159,761.74 × 911,637.75 - Step 4: Simplify right side
1,565,028.51x = 1,968,920,333,189.69 - Step 5: Solve for x
x = 1,968,920,333,189.69/1,565,028.51 - Step 6: Final answer
x = 1,258,073.14
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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.